Home / 70,120.40-96,767.15-38,288.61

Finding the Fourth Proportional to 70,120.40, 96,767.15 and 38,288.61

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Solution

The fourth proportional to 70,120.40, 96,767.15 and 38,288.61 is: 52,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,120.40 : 96,767.15 = 38,288.61 : x
  2. Step 2: Convert to fraction form
    70,120.40/96,767.15 = 38,288.61/x
  3. Step 3: Cross multiply
    70,120.40x = 96,767.15 × 38,288.61
  4. Step 4: Simplify right side
    70,120.40x = 3,705,079,475.72
  5. Step 5: Solve for x
    x = 3,705,079,475.72/70,120.40
  6. Step 6: Final answer
    x = 52,838.83

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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.