Home / 89,398.53-123,372.05-49,114.80

Finding the Fourth Proportional to 89,398.53, 123,372.05 and 49,114.80

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Solution

The fourth proportional to 89,398.53, 123,372.05 and 49,114.80 is: 67,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,398.53 : 123,372.05 = 49,114.80 : x
  2. Step 2: Convert to fraction form
    89,398.53/123,372.05 = 49,114.80/x
  3. Step 3: Cross multiply
    89,398.53x = 123,372.05 × 49,114.80
  4. Step 4: Simplify right side
    89,398.53x = 6,059,393,315.77
  5. Step 5: Solve for x
    x = 6,059,393,315.77/89,398.53
  6. Step 6: Final answer
    x = 67,779.56

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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.