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Finding the Fourth Proportional to 75,154.48, 112,552.78 and 43,497.88

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Solution

The fourth proportional to 75,154.48, 112,552.78 and 43,497.88 is: 65,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,154.48 : 112,552.78 = 43,497.88 : x
  2. Step 2: Convert to fraction form
    75,154.48/112,552.78 = 43,497.88/x
  3. Step 3: Cross multiply
    75,154.48x = 112,552.78 × 43,497.88
  4. Step 4: Simplify right side
    75,154.48x = 4,895,807,318.11
  5. Step 5: Solve for x
    x = 4,895,807,318.11/75,154.48
  6. Step 6: Final answer
    x = 65,143.25

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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.