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Finding the Fourth Proportional to 86,480.80, 119,329.78 and 48,747.76

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Solution

The fourth proportional to 86,480.80, 119,329.78 and 48,747.76 is: 67,264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,480.80 : 119,329.78 = 48,747.76 : x
  2. Step 2: Convert to fraction form
    86,480.80/119,329.78 = 48,747.76/x
  3. Step 3: Cross multiply
    86,480.80x = 119,329.78 × 48,747.76
  4. Step 4: Simplify right side
    86,480.80x = 5,817,059,476.29
  5. Step 5: Solve for x
    x = 5,817,059,476.29/86,480.80
  6. Step 6: Final answer
    x = 67,264.17

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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.