Home / 55,778.39-83,700.81-20,242.47

Finding the Fourth Proportional to 55,778.39, 83,700.81 and 20,242.47

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Solution

The fourth proportional to 55,778.39, 83,700.81 and 20,242.47 is: 30,375.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,778.39 : 83,700.81 = 20,242.47 : x
  2. Step 2: Convert to fraction form
    55,778.39/83,700.81 = 20,242.47/x
  3. Step 3: Cross multiply
    55,778.39x = 83,700.81 × 20,242.47
  4. Step 4: Simplify right side
    55,778.39x = 1,694,311,135.40
  5. Step 5: Solve for x
    x = 1,694,311,135.40/55,778.39
  6. Step 6: Final answer
    x = 30,375.77

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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.