Home / 87,076.18-120,053.88-56,395.07

Finding the Fourth Proportional to 87,076.18, 120,053.88 and 56,395.07

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Solution

The fourth proportional to 87,076.18, 120,053.88 and 56,395.07 is: 77,753.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,076.18 : 120,053.88 = 56,395.07 : x
  2. Step 2: Convert to fraction form
    87,076.18/120,053.88 = 56,395.07/x
  3. Step 3: Cross multiply
    87,076.18x = 120,053.88 × 56,395.07
  4. Step 4: Simplify right side
    87,076.18x = 6,770,446,577.58
  5. Step 5: Solve for x
    x = 6,770,446,577.58/87,076.18
  6. Step 6: Final answer
    x = 77,753.14

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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.