Home / 60,519.48-90,781.66-21,080.58

Finding the Fourth Proportional to 60,519.48, 90,781.66 and 21,080.58

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Solution

The fourth proportional to 60,519.48, 90,781.66 and 21,080.58 is: 31,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,519.48 : 90,781.66 = 21,080.58 : x
  2. Step 2: Convert to fraction form
    60,519.48/90,781.66 = 21,080.58/x
  3. Step 3: Cross multiply
    60,519.48x = 90,781.66 × 21,080.58
  4. Step 4: Simplify right side
    60,519.48x = 1,913,730,046.16
  5. Step 5: Solve for x
    x = 1,913,730,046.16/60,519.48
  6. Step 6: Final answer
    x = 31,621.72

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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.