Home / 40,748.68-61,136.34-19,691.15

Finding the Fourth Proportional to 40,748.68, 61,136.34 and 19,691.15

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Solution

The fourth proportional to 40,748.68, 61,136.34 and 19,691.15 is: 29,543.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,748.68 : 61,136.34 = 19,691.15 : x
  2. Step 2: Convert to fraction form
    40,748.68/61,136.34 = 19,691.15/x
  3. Step 3: Cross multiply
    40,748.68x = 61,136.34 × 19,691.15
  4. Step 4: Simplify right side
    40,748.68x = 1,203,844,461.87
  5. Step 5: Solve for x
    x = 1,203,844,461.87/40,748.68
  6. Step 6: Final answer
    x = 29,543.15

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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.