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Finding the Fourth Proportional to 63,124.80, 94,639.20 and 31,982.40

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Solution

The fourth proportional to 63,124.80, 94,639.20 and 31,982.40 is: 47,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,124.80 : 94,639.20 = 31,982.40 : x
  2. Step 2: Convert to fraction form
    63,124.80/94,639.20 = 31,982.40/x
  3. Step 3: Cross multiply
    63,124.80x = 94,639.20 × 31,982.40
  4. Step 4: Simplify right side
    63,124.80x = 3,026,788,750.08
  5. Step 5: Solve for x
    x = 3,026,788,750.08/63,124.80
  6. Step 6: Final answer
    x = 47,949.28

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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.