Home / 51,037.43-70,431.59-28,375.71

Finding the Fourth Proportional to 51,037.43, 70,431.59 and 28,375.71

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Solution

The fourth proportional to 51,037.43, 70,431.59 and 28,375.71 is: 39,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.43 : 70,431.59 = 28,375.71 : x
  2. Step 2: Convert to fraction form
    51,037.43/70,431.59 = 28,375.71/x
  3. Step 3: Cross multiply
    51,037.43x = 70,431.59 × 28,375.71
  4. Step 4: Simplify right side
    51,037.43x = 1,998,546,372.68
  5. Step 5: Solve for x
    x = 1,998,546,372.68/51,037.43
  6. Step 6: Final answer
    x = 39,158.44

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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.