Home / 87,088.38-120,249.90-66,913.26

Finding the Fourth Proportional to 87,088.38, 120,249.90 and 66,913.26

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Solution

The fourth proportional to 87,088.38, 120,249.90 and 66,913.26 is: 92,392.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,088.38 : 120,249.90 = 66,913.26 : x
  2. Step 2: Convert to fraction form
    87,088.38/120,249.90 = 66,913.26/x
  3. Step 3: Cross multiply
    87,088.38x = 120,249.90 × 66,913.26
  4. Step 4: Simplify right side
    87,088.38x = 8,046,312,823.67
  5. Step 5: Solve for x
    x = 8,046,312,823.67/87,088.38
  6. Step 6: Final answer
    x = 92,392.50

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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.