Home / 87,084.18-120,063.38-56,402.69

Finding the Fourth Proportional to 87,084.18, 120,063.38 and 56,402.69

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Solution

The fourth proportional to 87,084.18, 120,063.38 and 56,402.69 is: 77,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,084.18 : 120,063.38 = 56,402.69 : x
  2. Step 2: Convert to fraction form
    87,084.18/120,063.38 = 56,402.69/x
  3. Step 3: Cross multiply
    87,084.18x = 120,063.38 × 56,402.69
  4. Step 4: Simplify right side
    87,084.18x = 6,771,896,720.16
  5. Step 5: Solve for x
    x = 6,771,896,720.16/87,084.18
  6. Step 6: Final answer
    x = 77,762.65

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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.