Home / 79,442.04-119,592.55-72,371.72

Finding the Fourth Proportional to 79,442.04, 119,592.55 and 72,371.72

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Solution

The fourth proportional to 79,442.04, 119,592.55 and 72,371.72 is: 108,948.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,442.04 : 119,592.55 = 72,371.72 : x
  2. Step 2: Convert to fraction form
    79,442.04/119,592.55 = 72,371.72/x
  3. Step 3: Cross multiply
    79,442.04x = 119,592.55 × 72,371.72
  4. Step 4: Simplify right side
    79,442.04x = 8,655,118,872.95
  5. Step 5: Solve for x
    x = 8,655,118,872.95/79,442.04
  6. Step 6: Final answer
    x = 108,948.84

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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.