Home / 89,157.20-123,031.72-48,862.96

Finding the Fourth Proportional to 89,157.20, 123,031.72 and 48,862.96

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Solution

The fourth proportional to 89,157.20, 123,031.72 and 48,862.96 is: 67,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,157.20 : 123,031.72 = 48,862.96 : x
  2. Step 2: Convert to fraction form
    89,157.20/123,031.72 = 48,862.96/x
  3. Step 3: Cross multiply
    89,157.20x = 123,031.72 × 48,862.96
  4. Step 4: Simplify right side
    89,157.20x = 6,011,694,013.09
  5. Step 5: Solve for x
    x = 6,011,694,013.09/89,157.20
  6. Step 6: Final answer
    x = 67,428.03

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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.