Home / 79,931.91-119,897.89-40,500.30

Finding the Fourth Proportional to 79,931.91, 119,897.89 and 40,500.30

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Solution

The fourth proportional to 79,931.91, 119,897.89 and 40,500.30 is: 60,750.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,931.91 : 119,897.89 = 40,500.30 : x
  2. Step 2: Convert to fraction form
    79,931.91/119,897.89 = 40,500.30/x
  3. Step 3: Cross multiply
    79,931.91x = 119,897.89 × 40,500.30
  4. Step 4: Simplify right side
    79,931.91x = 4,855,900,862.73
  5. Step 5: Solve for x
    x = 4,855,900,862.73/79,931.91
  6. Step 6: Final answer
    x = 60,750.46

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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.