Home / 63,775.97-87,974.19-39,861.14

Finding the Fourth Proportional to 63,775.97, 87,974.19 and 39,861.14

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Solution

The fourth proportional to 63,775.97, 87,974.19 and 39,861.14 is: 54,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,775.97 : 87,974.19 = 39,861.14 : x
  2. Step 2: Convert to fraction form
    63,775.97/87,974.19 = 39,861.14/x
  3. Step 3: Cross multiply
    63,775.97x = 87,974.19 × 39,861.14
  4. Step 4: Simplify right side
    63,775.97x = 3,506,751,503.98
  5. Step 5: Solve for x
    x = 3,506,751,503.98/63,775.97
  6. Step 6: Final answer
    x = 54,985.47

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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.