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Finding the Fourth Proportional to 72,314.96, 108,285.53 and 49,894.79

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Solution

The fourth proportional to 72,314.96, 108,285.53 and 49,894.79 is: 74,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,314.96 : 108,285.53 = 49,894.79 : x
  2. Step 2: Convert to fraction form
    72,314.96/108,285.53 = 49,894.79/x
  3. Step 3: Cross multiply
    72,314.96x = 108,285.53 × 49,894.79
  4. Step 4: Simplify right side
    72,314.96x = 5,402,882,988.49
  5. Step 5: Solve for x
    x = 5,402,882,988.49/72,314.96
  6. Step 6: Final answer
    x = 74,713.22

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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.