Home / 87,089.54-119,915.38-76,272.06

Finding the Fourth Proportional to 87,089.54, 119,915.38 and 76,272.06

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Solution

The fourth proportional to 87,089.54, 119,915.38 and 76,272.06 is: 105,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.54 : 119,915.38 = 76,272.06 : x
  2. Step 2: Convert to fraction form
    87,089.54/119,915.38 = 76,272.06/x
  3. Step 3: Cross multiply
    87,089.54x = 119,915.38 × 76,272.06
  4. Step 4: Simplify right side
    87,089.54x = 9,146,193,058.28
  5. Step 5: Solve for x
    x = 9,146,193,058.28/87,089.54
  6. Step 6: Final answer
    x = 105,020.57

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1.5x scale

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.