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Finding the Fourth Proportional to 63,948, 88,286.04 and 56,854.80

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Solution

The fourth proportional to 63,948, 88,286.04 and 56,854.80 is: 78,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,948 : 88,286.04 = 56,854.80 : x
  2. Step 2: Convert to fraction form
    63,948/88,286.04 = 56,854.80/x
  3. Step 3: Cross multiply
    63,948x = 88,286.04 × 56,854.80
  4. Step 4: Simplify right side
    63,948x = 5,019,485,146.99
  5. Step 5: Solve for x
    x = 5,019,485,146.99/63,948
  6. Step 6: Final answer
    x = 78,493.23

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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.