Home / 55,431.16-83,134.56-15,979.70

Finding the Fourth Proportional to 55,431.16, 83,134.56 and 15,979.70

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Solution

The fourth proportional to 55,431.16, 83,134.56 and 15,979.70 is: 23,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,431.16 : 83,134.56 = 15,979.70 : x
  2. Step 2: Convert to fraction form
    55,431.16/83,134.56 = 15,979.70/x
  3. Step 3: Cross multiply
    55,431.16x = 83,134.56 × 15,979.70
  4. Step 4: Simplify right side
    55,431.16x = 1,328,465,328.43
  5. Step 5: Solve for x
    x = 1,328,465,328.43/55,431.16
  6. Step 6: Final answer
    x = 23,966.04

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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.