Home / 55,132.20-76,080.24-29,981.70

Finding the Fourth Proportional to 55,132.20, 76,080.24 and 29,981.70

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Solution

The fourth proportional to 55,132.20, 76,080.24 and 29,981.70 is: 41,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,132.20 : 76,080.24 = 29,981.70 : x
  2. Step 2: Convert to fraction form
    55,132.20/76,080.24 = 29,981.70/x
  3. Step 3: Cross multiply
    55,132.20x = 76,080.24 × 29,981.70
  4. Step 4: Simplify right side
    55,132.20x = 2,281,014,931.61
  5. Step 5: Solve for x
    x = 2,281,014,931.61/55,132.20
  6. Step 6: Final answer
    x = 41,373.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.