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Finding the Fourth Proportional to 92,757.60, 139,213.20 and 42,914.40

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Solution

The fourth proportional to 92,757.60, 139,213.20 and 42,914.40 is: 64,407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,757.60 : 139,213.20 = 42,914.40 : x
  2. Step 2: Convert to fraction form
    92,757.60/139,213.20 = 42,914.40/x
  3. Step 3: Cross multiply
    92,757.60x = 139,213.20 × 42,914.40
  4. Step 4: Simplify right side
    92,757.60x = 5,974,250,950.08
  5. Step 5: Solve for x
    x = 5,974,250,950.08/92,757.60
  6. Step 6: Final answer
    x = 64,407.13

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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.