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Finding the Fourth Proportional to 68,031.24, 101,892.98 and 36,385.40

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Solution

The fourth proportional to 68,031.24, 101,892.98 and 36,385.40 is: 54,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.24 : 101,892.98 = 36,385.40 : x
  2. Step 2: Convert to fraction form
    68,031.24/101,892.98 = 36,385.40/x
  3. Step 3: Cross multiply
    68,031.24x = 101,892.98 × 36,385.40
  4. Step 4: Simplify right side
    68,031.24x = 3,707,416,834.49
  5. Step 5: Solve for x
    x = 3,707,416,834.49/68,031.24
  6. Step 6: Final answer
    x = 54,495.80

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1.5x scale

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.