Home / 51,037.38-70,431.50-28,375.65

Finding the Fourth Proportional to 51,037.38, 70,431.50 and 28,375.65

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Solution

The fourth proportional to 51,037.38, 70,431.50 and 28,375.65 is: 39,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,037.38 : 70,431.50 = 28,375.65 : x
  2. Step 2: Convert to fraction form
    51,037.38/70,431.50 = 28,375.65/x
  3. Step 3: Cross multiply
    51,037.38x = 70,431.50 × 28,375.65
  4. Step 4: Simplify right side
    51,037.38x = 1,998,539,451.10
  5. Step 5: Solve for x
    x = 1,998,539,451.10/51,037.38
  6. Step 6: Final answer
    x = 39,158.35

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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.