Home / 87,192.64-130,788.20-57,742.24

Finding the Fourth Proportional to 87,192.64, 130,788.20 and 57,742.24

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Solution

The fourth proportional to 87,192.64, 130,788.20 and 57,742.24 is: 86,612.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,192.64 : 130,788.20 = 57,742.24 : x
  2. Step 2: Convert to fraction form
    87,192.64/130,788.20 = 57,742.24/x
  3. Step 3: Cross multiply
    87,192.64x = 130,788.20 × 57,742.24
  4. Step 4: Simplify right side
    87,192.64x = 7,552,003,633.57
  5. Step 5: Solve for x
    x = 7,552,003,633.57/87,192.64
  6. Step 6: Final answer
    x = 86,612.86

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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.