Home / 51,618.47-77,449.57-28,217.57

Finding the Fourth Proportional to 51,618.47, 77,449.57 and 28,217.57

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Solution

The fourth proportional to 51,618.47, 77,449.57 and 28,217.57 is: 42,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,618.47 : 77,449.57 = 28,217.57 : x
  2. Step 2: Convert to fraction form
    51,618.47/77,449.57 = 28,217.57/x
  3. Step 3: Cross multiply
    51,618.47x = 77,449.57 × 28,217.57
  4. Step 4: Simplify right side
    51,618.47x = 2,185,438,205.15
  5. Step 5: Solve for x
    x = 2,185,438,205.15/51,618.47
  6. Step 6: Final answer
    x = 42,338.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.