Home / 57,106.76-78,805.62-31,614.20

Finding the Fourth Proportional to 57,106.76, 78,805.62 and 31,614.20

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Solution

The fourth proportional to 57,106.76, 78,805.62 and 31,614.20 is: 43,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,106.76 : 78,805.62 = 31,614.20 : x
  2. Step 2: Convert to fraction form
    57,106.76/78,805.62 = 31,614.20/x
  3. Step 3: Cross multiply
    57,106.76x = 78,805.62 × 31,614.20
  4. Step 4: Simplify right side
    57,106.76x = 2,491,376,631.80
  5. Step 5: Solve for x
    x = 2,491,376,631.80/57,106.76
  6. Step 6: Final answer
    x = 43,626.65

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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.