Home / 87,450.66-120,670.83-49,725.72

Finding the Fourth Proportional to 87,450.66, 120,670.83 and 49,725.72

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Solution

The fourth proportional to 87,450.66, 120,670.83 and 49,725.72 is: 68,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,450.66 : 120,670.83 = 49,725.72 : x
  2. Step 2: Convert to fraction form
    87,450.66/120,670.83 = 49,725.72/x
  3. Step 3: Cross multiply
    87,450.66x = 120,670.83 × 49,725.72
  4. Step 4: Simplify right side
    87,450.66x = 6,000,443,904.75
  5. Step 5: Solve for x
    x = 6,000,443,904.75/87,450.66
  6. Step 6: Final answer
    x = 68,615.19

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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.