Home / 55,778.39-83,680.74-18,338.57

Finding the Fourth Proportional to 55,778.39, 83,680.74 and 18,338.57

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Solution

The fourth proportional to 55,778.39, 83,680.74 and 18,338.57 is: 27,512.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,778.39 : 83,680.74 = 18,338.57 : x
  2. Step 2: Convert to fraction form
    55,778.39/83,680.74 = 18,338.57/x
  3. Step 3: Cross multiply
    55,778.39x = 83,680.74 × 18,338.57
  4. Step 4: Simplify right side
    55,778.39x = 1,534,585,108.14
  5. Step 5: Solve for x
    x = 1,534,585,108.14/55,778.39
  6. Step 6: Final answer
    x = 27,512.18

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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.