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Finding the Fourth Proportional to 78,773.80, 118,052.70 and 50,607.40

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Solution

The fourth proportional to 78,773.80, 118,052.70 and 50,607.40 is: 75,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,773.80 : 118,052.70 = 50,607.40 : x
  2. Step 2: Convert to fraction form
    78,773.80/118,052.70 = 50,607.40/x
  3. Step 3: Cross multiply
    78,773.80x = 118,052.70 × 50,607.40
  4. Step 4: Simplify right side
    78,773.80x = 5,974,340,209.98
  5. Step 5: Solve for x
    x = 5,974,340,209.98/78,773.80
  6. Step 6: Final answer
    x = 75,841.72

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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.