Home / 89,402.40-123,433.02-55,446.96

Finding the Fourth Proportional to 89,402.40, 123,433.02 and 55,446.96

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Solution

The fourth proportional to 89,402.40, 123,433.02 and 55,446.96 is: 76,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,402.40 : 123,433.02 = 55,446.96 : x
  2. Step 2: Convert to fraction form
    89,402.40/123,433.02 = 55,446.96/x
  3. Step 3: Cross multiply
    89,402.40x = 123,433.02 × 55,446.96
  4. Step 4: Simplify right side
    89,402.40x = 6,843,985,722.62
  5. Step 5: Solve for x
    x = 6,843,985,722.62/89,402.40
  6. Step 6: Final answer
    x = 76,552.60

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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.