Home / 87,261.74-130,860.28-31,086.92

Finding the Fourth Proportional to 87,261.74, 130,860.28 and 31,086.92

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Solution

The fourth proportional to 87,261.74, 130,860.28 and 31,086.92 is: 46,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,261.74 : 130,860.28 = 31,086.92 : x
  2. Step 2: Convert to fraction form
    87,261.74/130,860.28 = 31,086.92/x
  3. Step 3: Cross multiply
    87,261.74x = 130,860.28 × 31,086.92
  4. Step 4: Simplify right side
    87,261.74x = 4,068,043,421.55
  5. Step 5: Solve for x
    x = 4,068,043,421.55/87,261.74
  6. Step 6: Final answer
    x = 46,618.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.