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Finding the Fourth Proportional to 101,027.70, 139,387.32 and 58,577.76

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Solution

The fourth proportional to 101,027.70, 139,387.32 and 58,577.76 is: 80,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,027.70 : 139,387.32 = 58,577.76 : x
  2. Step 2: Convert to fraction form
    101,027.70/139,387.32 = 58,577.76/x
  3. Step 3: Cross multiply
    101,027.70x = 139,387.32 × 58,577.76
  4. Step 4: Simplify right side
    101,027.70x = 8,164,996,978.00
  5. Step 5: Solve for x
    x = 8,164,996,978.00/101,027.70
  6. Step 6: Final answer
    x = 80,819.39

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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.