Home / 91,517.12-126,372.44-57,582.16

Finding the Fourth Proportional to 91,517.12, 126,372.44 and 57,582.16

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Solution

The fourth proportional to 91,517.12, 126,372.44 and 57,582.16 is: 79,512.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,517.12 : 126,372.44 = 57,582.16 : x
  2. Step 2: Convert to fraction form
    91,517.12/126,372.44 = 57,582.16/x
  3. Step 3: Cross multiply
    91,517.12x = 126,372.44 × 57,582.16
  4. Step 4: Simplify right side
    91,517.12x = 7,276,798,059.67
  5. Step 5: Solve for x
    x = 7,276,798,059.67/91,517.12
  6. Step 6: Final answer
    x = 79,512.97

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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.