Home / 85,665.19-118,214.25-47,422.48

Finding the Fourth Proportional to 85,665.19, 118,214.25 and 47,422.48

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Solution

The fourth proportional to 85,665.19, 118,214.25 and 47,422.48 is: 65,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,665.19 : 118,214.25 = 47,422.48 : x
  2. Step 2: Convert to fraction form
    85,665.19/118,214.25 = 47,422.48/x
  3. Step 3: Cross multiply
    85,665.19x = 118,214.25 × 47,422.48
  4. Step 4: Simplify right side
    85,665.19x = 5,606,012,906.34
  5. Step 5: Solve for x
    x = 5,606,012,906.34/85,665.19
  6. Step 6: Final answer
    x = 65,440.97

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.