Home / 87,004.92-120,084.06-56,795.16

Finding the Fourth Proportional to 87,004.92, 120,084.06 and 56,795.16

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Solution

The fourth proportional to 87,004.92, 120,084.06 and 56,795.16 is: 78,388.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,004.92 : 120,084.06 = 56,795.16 : x
  2. Step 2: Convert to fraction form
    87,004.92/120,084.06 = 56,795.16/x
  3. Step 3: Cross multiply
    87,004.92x = 120,084.06 × 56,795.16
  4. Step 4: Simplify right side
    87,004.92x = 6,820,193,401.15
  5. Step 5: Solve for x
    x = 6,820,193,401.15/87,004.92
  6. Step 6: Final answer
    x = 78,388.59

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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.