Home / 51,857.47-71,540.85-31,715.20

Finding the Fourth Proportional to 51,857.47, 71,540.85 and 31,715.20

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Solution

The fourth proportional to 51,857.47, 71,540.85 and 31,715.20 is: 43,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,857.47 : 71,540.85 = 31,715.20 : x
  2. Step 2: Convert to fraction form
    51,857.47/71,540.85 = 31,715.20/x
  3. Step 3: Cross multiply
    51,857.47x = 71,540.85 × 31,715.20
  4. Step 4: Simplify right side
    51,857.47x = 2,268,932,365.92
  5. Step 5: Solve for x
    x = 2,268,932,365.92/51,857.47
  6. Step 6: Final answer
    x = 43,753.24

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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.