Home / 57,113.16-78,814.90-31,618.04

Finding the Fourth Proportional to 57,113.16, 78,814.90 and 31,618.04

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Solution

The fourth proportional to 57,113.16, 78,814.90 and 31,618.04 is: 43,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.16 : 78,814.90 = 31,618.04 : x
  2. Step 2: Convert to fraction form
    57,113.16/78,814.90 = 31,618.04/x
  3. Step 3: Cross multiply
    57,113.16x = 78,814.90 × 31,618.04
  4. Step 4: Simplify right side
    57,113.16x = 2,491,972,660.80
  5. Step 5: Solve for x
    x = 2,491,972,660.80/57,113.16
  6. Step 6: Final answer
    x = 43,632.20

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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.