Home / 82,479.97-124,338.02-76,987.16

Finding the Fourth Proportional to 82,479.97, 124,338.02 and 76,987.16

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Solution

The fourth proportional to 82,479.97, 124,338.02 and 76,987.16 is: 116,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,479.97 : 124,338.02 = 76,987.16 : x
  2. Step 2: Convert to fraction form
    82,479.97/124,338.02 = 76,987.16/x
  3. Step 3: Cross multiply
    82,479.97x = 124,338.02 × 76,987.16
  4. Step 4: Simplify right side
    82,479.97x = 9,572,430,610.60
  5. Step 5: Solve for x
    x = 9,572,430,610.60/82,479.97
  6. Step 6: Final answer
    x = 116,057.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.