Home / 51,151.38-70,591.10-28,490.38

Finding the Fourth Proportional to 51,151.38, 70,591.10 and 28,490.38

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Solution

The fourth proportional to 51,151.38, 70,591.10 and 28,490.38 is: 39,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,151.38 : 70,591.10 = 28,490.38 : x
  2. Step 2: Convert to fraction form
    51,151.38/70,591.10 = 28,490.38/x
  3. Step 3: Cross multiply
    51,151.38x = 70,591.10 × 28,490.38
  4. Step 4: Simplify right side
    51,151.38x = 2,011,167,263.62
  5. Step 5: Solve for x
    x = 2,011,167,263.62/51,151.38
  6. Step 6: Final answer
    x = 39,317.95

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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.