Home / 87,386.46-131,108.32-28,222.58

Finding the Fourth Proportional to 87,386.46, 131,108.32 and 28,222.58

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Solution

The fourth proportional to 87,386.46, 131,108.32 and 28,222.58 is: 42,343.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,386.46 : 131,108.32 = 28,222.58 : x
  2. Step 2: Convert to fraction form
    87,386.46/131,108.32 = 28,222.58/x
  3. Step 3: Cross multiply
    87,386.46x = 131,108.32 × 28,222.58
  4. Step 4: Simplify right side
    87,386.46x = 3,700,215,049.87
  5. Step 5: Solve for x
    x = 3,700,215,049.87/87,386.46
  6. Step 6: Final answer
    x = 42,343.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.