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Finding the Fourth Proportional to 102,490.49, 153,591.20 and 48,397.45

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Solution

The fourth proportional to 102,490.49, 153,591.20 and 48,397.45 is: 72,527.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,490.49 : 153,591.20 = 48,397.45 : x
  2. Step 2: Convert to fraction form
    102,490.49/153,591.20 = 48,397.45/x
  3. Step 3: Cross multiply
    102,490.49x = 153,591.20 × 48,397.45
  4. Step 4: Simplify right side
    102,490.49x = 7,433,422,129.83
  5. Step 5: Solve for x
    x = 7,433,422,129.83/102,490.49
  6. Step 6: Final answer
    x = 72,527.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.