Home / 85,607.82-118,139.19-47,882.07

Finding the Fourth Proportional to 85,607.82, 118,139.19 and 47,882.07

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Solution

The fourth proportional to 85,607.82, 118,139.19 and 47,882.07 is: 66,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,607.82 : 118,139.19 = 47,882.07 : x
  2. Step 2: Convert to fraction form
    85,607.82/118,139.19 = 47,882.07/x
  3. Step 3: Cross multiply
    85,607.82x = 118,139.19 × 47,882.07
  4. Step 4: Simplify right side
    85,607.82x = 5,656,748,965.32
  5. Step 5: Solve for x
    x = 5,656,748,965.32/85,607.82
  6. Step 6: Final answer
    x = 66,077.48

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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.