Home / 80,987.13-111,701.97-59,470.11

Finding the Fourth Proportional to 80,987.13, 111,701.97 and 59,470.11

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Solution

The fourth proportional to 80,987.13, 111,701.97 and 59,470.11 is: 82,024.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,987.13 : 111,701.97 = 59,470.11 : x
  2. Step 2: Convert to fraction form
    80,987.13/111,701.97 = 59,470.11/x
  3. Step 3: Cross multiply
    80,987.13x = 111,701.97 × 59,470.11
  4. Step 4: Simplify right side
    80,987.13x = 6,642,928,443.12
  5. Step 5: Solve for x
    x = 6,642,928,443.12/80,987.13
  6. Step 6: Final answer
    x = 82,024.50

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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.