Home / 60,519.97-90,780.36-21,077.83

Finding the Fourth Proportional to 60,519.97, 90,780.36 and 21,077.83

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Solution

The fourth proportional to 60,519.97, 90,780.36 and 21,077.83 is: 31,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,519.97 : 90,780.36 = 21,077.83 : x
  2. Step 2: Convert to fraction form
    60,519.97/90,780.36 = 21,077.83/x
  3. Step 3: Cross multiply
    60,519.97x = 90,780.36 × 21,077.83
  4. Step 4: Simplify right side
    60,519.97x = 1,913,452,995.42
  5. Step 5: Solve for x
    x = 1,913,452,995.42/60,519.97
  6. Step 6: Final answer
    x = 31,616.89

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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.