Home / 55,043.28-75,964.68-31,175.76

Finding the Fourth Proportional to 55,043.28, 75,964.68 and 31,175.76

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Solution

The fourth proportional to 55,043.28, 75,964.68 and 31,175.76 is: 43,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,043.28 : 75,964.68 = 31,175.76 : x
  2. Step 2: Convert to fraction form
    55,043.28/75,964.68 = 31,175.76/x
  3. Step 3: Cross multiply
    55,043.28x = 75,964.68 × 31,175.76
  4. Step 4: Simplify right side
    55,043.28x = 2,368,256,632.16
  5. Step 5: Solve for x
    x = 2,368,256,632.16/55,043.28
  6. Step 6: Final answer
    x = 43,025.35

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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.