Home / 55,451.20-83,047.20-54,337.60

Finding the Fourth Proportional to 55,451.20, 83,047.20 and 54,337.60

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Solution

The fourth proportional to 55,451.20, 83,047.20 and 54,337.60 is: 81,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,451.20 : 83,047.20 = 54,337.60 : x
  2. Step 2: Convert to fraction form
    55,451.20/83,047.20 = 54,337.60/x
  3. Step 3: Cross multiply
    55,451.20x = 83,047.20 × 54,337.60
  4. Step 4: Simplify right side
    55,451.20x = 4,512,585,534.72
  5. Step 5: Solve for x
    x = 4,512,585,534.72/55,451.20
  6. Step 6: Final answer
    x = 81,379.40

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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.