Home / 55,382.17-83,116.98-20,331.85

Finding the Fourth Proportional to 55,382.17, 83,116.98 and 20,331.85

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Solution

The fourth proportional to 55,382.17, 83,116.98 and 20,331.85 is: 30,513.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,382.17 : 83,116.98 = 20,331.85 : x
  2. Step 2: Convert to fraction form
    55,382.17/83,116.98 = 20,331.85/x
  3. Step 3: Cross multiply
    55,382.17x = 83,116.98 × 20,331.85
  4. Step 4: Simplify right side
    55,382.17x = 1,689,921,969.81
  5. Step 5: Solve for x
    x = 1,689,921,969.81/55,382.17
  6. Step 6: Final answer
    x = 30,513.83

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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.