Home / 55,983.75-83,944.02-20,909.13

Finding the Fourth Proportional to 55,983.75, 83,944.02 and 20,909.13

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Solution

The fourth proportional to 55,983.75, 83,944.02 and 20,909.13 is: 31,351.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,983.75 : 83,944.02 = 20,909.13 : x
  2. Step 2: Convert to fraction form
    55,983.75/83,944.02 = 20,909.13/x
  3. Step 3: Cross multiply
    55,983.75x = 83,944.02 × 20,909.13
  4. Step 4: Simplify right side
    55,983.75x = 1,755,196,426.90
  5. Step 5: Solve for x
    x = 1,755,196,426.90/55,983.75
  6. Step 6: Final answer
    x = 31,351.89

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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.