Home / 63,836.16-88,080-38,691.84

Finding the Fourth Proportional to 63,836.16, 88,080 and 38,691.84

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Solution

The fourth proportional to 63,836.16, 88,080 and 38,691.84 is: 53,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,836.16 : 88,080 = 38,691.84 : x
  2. Step 2: Convert to fraction form
    63,836.16/88,080 = 38,691.84/x
  3. Step 3: Cross multiply
    63,836.16x = 88,080 × 38,691.84
  4. Step 4: Simplify right side
    63,836.16x = 3,407,977,267.20
  5. Step 5: Solve for x
    x = 3,407,977,267.20/63,836.16
  6. Step 6: Final answer
    x = 53,386.31

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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.