Home / 80,697.06-121,045.60-21,532.95

Finding the Fourth Proportional to 80,697.06, 121,045.60 and 21,532.95

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Solution

The fourth proportional to 80,697.06, 121,045.60 and 21,532.95 is: 32,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,697.06 : 121,045.60 = 21,532.95 : x
  2. Step 2: Convert to fraction form
    80,697.06/121,045.60 = 21,532.95/x
  3. Step 3: Cross multiply
    80,697.06x = 121,045.60 × 21,532.95
  4. Step 4: Simplify right side
    80,697.06x = 2,606,468,852.52
  5. Step 5: Solve for x
    x = 2,606,468,852.52/80,697.06
  6. Step 6: Final answer
    x = 32,299.43

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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.