Home / 91,631.18-126,451.48-59,781.26

Finding the Fourth Proportional to 91,631.18, 126,451.48 and 59,781.26

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Solution

The fourth proportional to 91,631.18, 126,451.48 and 59,781.26 is: 82,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,631.18 : 126,451.48 = 59,781.26 : x
  2. Step 2: Convert to fraction form
    91,631.18/126,451.48 = 59,781.26/x
  3. Step 3: Cross multiply
    91,631.18x = 126,451.48 × 59,781.26
  4. Step 4: Simplify right side
    91,631.18x = 7,559,428,803.26
  5. Step 5: Solve for x
    x = 7,559,428,803.26/91,631.18
  6. Step 6: Final answer
    x = 82,498.43

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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.