Home / 51,686.32-71,233.13-40,349.92

Finding the Fourth Proportional to 51,686.32, 71,233.13 and 40,349.92

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Solution

The fourth proportional to 51,686.32, 71,233.13 and 40,349.92 is: 55,609.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,686.32 : 71,233.13 = 40,349.92 : x
  2. Step 2: Convert to fraction form
    51,686.32/71,233.13 = 40,349.92/x
  3. Step 3: Cross multiply
    51,686.32x = 71,233.13 × 40,349.92
  4. Step 4: Simplify right side
    51,686.32x = 2,874,251,096.85
  5. Step 5: Solve for x
    x = 2,874,251,096.85/51,686.32
  6. Step 6: Final answer
    x = 55,609.51

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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.