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Finding the Fourth Proportional to 92,572.20, 127,749 and 50,129.76

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Solution

The fourth proportional to 92,572.20, 127,749 and 50,129.76 is: 69,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,572.20 : 127,749 = 50,129.76 : x
  2. Step 2: Convert to fraction form
    92,572.20/127,749 = 50,129.76/x
  3. Step 3: Cross multiply
    92,572.20x = 127,749 × 50,129.76
  4. Step 4: Simplify right side
    92,572.20x = 6,404,026,710.24
  5. Step 5: Solve for x
    x = 6,404,026,710.24/92,572.20
  6. Step 6: Final answer
    x = 69,178.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.