Home / 79,130.18-118,695.49-19,965.85

Finding the Fourth Proportional to 79,130.18, 118,695.49 and 19,965.85

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Solution

The fourth proportional to 79,130.18, 118,695.49 and 19,965.85 is: 29,948.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,130.18 : 118,695.49 = 19,965.85 : x
  2. Step 2: Convert to fraction form
    79,130.18/118,695.49 = 19,965.85/x
  3. Step 3: Cross multiply
    79,130.18x = 118,695.49 × 19,965.85
  4. Step 4: Simplify right side
    79,130.18x = 2,369,856,002.36
  5. Step 5: Solve for x
    x = 2,369,856,002.36/79,130.18
  6. Step 6: Final answer
    x = 29,948.83

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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.