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Finding the Fourth Proportional to 85,551.19, 118,042.09 and 47,824.15

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Solution

The fourth proportional to 85,551.19, 118,042.09 and 47,824.15 is: 65,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,551.19 : 118,042.09 = 47,824.15 : x
  2. Step 2: Convert to fraction form
    85,551.19/118,042.09 = 47,824.15/x
  3. Step 3: Cross multiply
    85,551.19x = 118,042.09 × 47,824.15
  4. Step 4: Simplify right side
    85,551.19x = 5,645,262,618.47
  5. Step 5: Solve for x
    x = 5,645,262,618.47/85,551.19
  6. Step 6: Final answer
    x = 65,986.96

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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.