Home / 79,438.28-119,590.20-68,590.76

Finding the Fourth Proportional to 79,438.28, 119,590.20 and 68,590.76

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Solution

The fourth proportional to 79,438.28, 119,590.20 and 68,590.76 is: 103,259.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,438.28 : 119,590.20 = 68,590.76 : x
  2. Step 2: Convert to fraction form
    79,438.28/119,590.20 = 68,590.76/x
  3. Step 3: Cross multiply
    79,438.28x = 119,590.20 × 68,590.76
  4. Step 4: Simplify right side
    79,438.28x = 8,202,782,108.60
  5. Step 5: Solve for x
    x = 8,202,782,108.60/79,438.28
  6. Step 6: Final answer
    x = 103,259.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.