Home / 55,897.97-83,846.21-13,778.55

Finding the Fourth Proportional to 55,897.97, 83,846.21 and 13,778.55

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Solution

The fourth proportional to 55,897.97, 83,846.21 and 13,778.55 is: 20,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,897.97 : 83,846.21 = 13,778.55 : x
  2. Step 2: Convert to fraction form
    55,897.97/83,846.21 = 13,778.55/x
  3. Step 3: Cross multiply
    55,897.97x = 83,846.21 × 13,778.55
  4. Step 4: Simplify right side
    55,897.97x = 1,155,279,127.90
  5. Step 5: Solve for x
    x = 1,155,279,127.90/55,897.97
  6. Step 6: Final answer
    x = 20,667.64

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Similar ratio
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1.5x scale

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.