Home / 80,931.24-121,396.86-34,184.52

Finding the Fourth Proportional to 80,931.24, 121,396.86 and 34,184.52

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Solution

The fourth proportional to 80,931.24, 121,396.86 and 34,184.52 is: 51,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931.24 : 121,396.86 = 34,184.52 : x
  2. Step 2: Convert to fraction form
    80,931.24/121,396.86 = 34,184.52/x
  3. Step 3: Cross multiply
    80,931.24x = 121,396.86 × 34,184.52
  4. Step 4: Simplify right side
    80,931.24x = 4,149,893,388.61
  5. Step 5: Solve for x
    x = 4,149,893,388.61/80,931.24
  6. Step 6: Final answer
    x = 51,276.78

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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.