Home / 87,184.97-120,284.28-56,987.69

Finding the Fourth Proportional to 87,184.97, 120,284.28 and 56,987.69

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Solution

The fourth proportional to 87,184.97, 120,284.28 and 56,987.69 is: 78,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,184.97 : 120,284.28 = 56,987.69 : x
  2. Step 2: Convert to fraction form
    87,184.97/120,284.28 = 56,987.69/x
  3. Step 3: Cross multiply
    87,184.97x = 120,284.28 × 56,987.69
  4. Step 4: Simplify right side
    87,184.97x = 6,854,723,561.22
  5. Step 5: Solve for x
    x = 6,854,723,561.22/87,184.97
  6. Step 6: Final answer
    x = 78,622.77

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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.