Home / 51,115.68-70,434.24-50,426.76

Finding the Fourth Proportional to 51,115.68, 70,434.24 and 50,426.76

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Solution

The fourth proportional to 51,115.68, 70,434.24 and 50,426.76 is: 69,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,115.68 : 70,434.24 = 50,426.76 : x
  2. Step 2: Convert to fraction form
    51,115.68/70,434.24 = 50,426.76/x
  3. Step 3: Cross multiply
    51,115.68x = 70,434.24 × 50,426.76
  4. Step 4: Simplify right side
    51,115.68x = 3,551,770,516.26
  5. Step 5: Solve for x
    x = 3,551,770,516.26/51,115.68
  6. Step 6: Final answer
    x = 69,484.95

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Double scale
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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.