Home / 87,986.25-121,521.26-59,642.73

Finding the Fourth Proportional to 87,986.25, 121,521.26 and 59,642.73

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Solution

The fourth proportional to 87,986.25, 121,521.26 and 59,642.73 is: 82,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,986.25 : 121,521.26 = 59,642.73 : x
  2. Step 2: Convert to fraction form
    87,986.25/121,521.26 = 59,642.73/x
  3. Step 3: Cross multiply
    87,986.25x = 121,521.26 × 59,642.73
  4. Step 4: Simplify right side
    87,986.25x = 7,247,859,848.55
  5. Step 5: Solve for x
    x = 7,247,859,848.55/87,986.25
  6. Step 6: Final answer
    x = 82,374.91

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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.