Home / 55,128.71-82,686.92-15,150.76

Finding the Fourth Proportional to 55,128.71, 82,686.92 and 15,150.76

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Solution

The fourth proportional to 55,128.71, 82,686.92 and 15,150.76 is: 22,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.71 : 82,686.92 = 15,150.76 : x
  2. Step 2: Convert to fraction form
    55,128.71/82,686.92 = 15,150.76/x
  3. Step 3: Cross multiply
    55,128.71x = 82,686.92 × 15,150.76
  4. Step 4: Simplify right side
    55,128.71x = 1,252,769,680.06
  5. Step 5: Solve for x
    x = 1,252,769,680.06/55,128.71
  6. Step 6: Final answer
    x = 22,724.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.