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Finding the Fourth Proportional to 79,663.68, 119,569.23 and 40,248.36

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Solution

The fourth proportional to 79,663.68, 119,569.23 and 40,248.36 is: 60,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,663.68 : 119,569.23 = 40,248.36 : x
  2. Step 2: Convert to fraction form
    79,663.68/119,569.23 = 40,248.36/x
  3. Step 3: Cross multiply
    79,663.68x = 119,569.23 × 40,248.36
  4. Step 4: Simplify right side
    79,663.68x = 4,812,465,413.96
  5. Step 5: Solve for x
    x = 4,812,465,413.96/79,663.68
  6. Step 6: Final answer
    x = 60,409.78

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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.