Home / 42,711.50-63,987.06-39,489.32

Finding the Fourth Proportional to 42,711.50, 63,987.06 and 39,489.32

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Solution

The fourth proportional to 42,711.50, 63,987.06 and 39,489.32 is: 59,159.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,711.50 : 63,987.06 = 39,489.32 : x
  2. Step 2: Convert to fraction form
    42,711.50/63,987.06 = 39,489.32/x
  3. Step 3: Cross multiply
    42,711.50x = 63,987.06 × 39,489.32
  4. Step 4: Simplify right side
    42,711.50x = 2,526,805,488.20
  5. Step 5: Solve for x
    x = 2,526,805,488.20/42,711.50
  6. Step 6: Final answer
    x = 59,159.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.