Home / 57,229.26-78,981.06-31,743.64

Finding the Fourth Proportional to 57,229.26, 78,981.06 and 31,743.64

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Solution

The fourth proportional to 57,229.26, 78,981.06 and 31,743.64 is: 43,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,229.26 : 78,981.06 = 31,743.64 : x
  2. Step 2: Convert to fraction form
    57,229.26/78,981.06 = 31,743.64/x
  3. Step 3: Cross multiply
    57,229.26x = 78,981.06 × 31,743.64
  4. Step 4: Simplify right side
    57,229.26x = 2,507,146,335.46
  5. Step 5: Solve for x
    x = 2,507,146,335.46/57,229.26
  6. Step 6: Final answer
    x = 43,808.82

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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.