Home / 87,185.97-120,285.66-56,988.69

Finding the Fourth Proportional to 87,185.97, 120,285.66 and 56,988.69

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Solution

The fourth proportional to 87,185.97, 120,285.66 and 56,988.69 is: 78,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,185.97 : 120,285.66 = 56,988.69 : x
  2. Step 2: Convert to fraction form
    87,185.97/120,285.66 = 56,988.69/x
  3. Step 3: Cross multiply
    87,185.97x = 120,285.66 × 56,988.69
  4. Step 4: Simplify right side
    87,185.97x = 6,854,922,189.19
  5. Step 5: Solve for x
    x = 6,854,922,189.19/87,185.97
  6. Step 6: Final answer
    x = 78,624.14

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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.