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Finding the Fourth Proportional to 101,375.40, 139,892.40 and 56,050.66

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Solution

The fourth proportional to 101,375.40, 139,892.40 and 56,050.66 is: 77,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,375.40 : 139,892.40 = 56,050.66 : x
  2. Step 2: Convert to fraction form
    101,375.40/139,892.40 = 56,050.66/x
  3. Step 3: Cross multiply
    101,375.40x = 139,892.40 × 56,050.66
  4. Step 4: Simplify right side
    101,375.40x = 7,841,061,348.98
  5. Step 5: Solve for x
    x = 7,841,061,348.98/101,375.40
  6. Step 6: Final answer
    x = 77,346.79

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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.