Home / 63,599.38-87,731.10-40,587.28

Finding the Fourth Proportional to 63,599.38, 87,731.10 and 40,587.28

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Solution

The fourth proportional to 63,599.38, 87,731.10 and 40,587.28 is: 55,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,599.38 : 87,731.10 = 40,587.28 : x
  2. Step 2: Convert to fraction form
    63,599.38/87,731.10 = 40,587.28/x
  3. Step 3: Cross multiply
    63,599.38x = 87,731.10 × 40,587.28
  4. Step 4: Simplify right side
    63,599.38x = 3,560,766,501.08
  5. Step 5: Solve for x
    x = 3,560,766,501.08/63,599.38
  6. Step 6: Final answer
    x = 55,987.44

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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.