Home / 87,228.88-120,254.92-58,889.68

Finding the Fourth Proportional to 87,228.88, 120,254.92 and 58,889.68

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Solution

The fourth proportional to 87,228.88, 120,254.92 and 58,889.68 is: 81,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,228.88 : 120,254.92 = 58,889.68 : x
  2. Step 2: Convert to fraction form
    87,228.88/120,254.92 = 58,889.68/x
  3. Step 3: Cross multiply
    87,228.88x = 120,254.92 × 58,889.68
  4. Step 4: Simplify right side
    87,228.88x = 7,081,773,757.23
  5. Step 5: Solve for x
    x = 7,081,773,757.23/87,228.88
  6. Step 6: Final answer
    x = 81,186.11

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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.