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Finding the Fourth Proportional to 63,480.92, 87,575.48 and 40,815.70

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Solution

The fourth proportional to 63,480.92, 87,575.48 and 40,815.70 is: 56,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,480.92 : 87,575.48 = 40,815.70 : x
  2. Step 2: Convert to fraction form
    63,480.92/87,575.48 = 40,815.70/x
  3. Step 3: Cross multiply
    63,480.92x = 87,575.48 × 40,815.70
  4. Step 4: Simplify right side
    63,480.92x = 3,574,454,249.08
  5. Step 5: Solve for x
    x = 3,574,454,249.08/63,480.92
  6. Step 6: Final answer
    x = 56,307.54

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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.