Home / 54,221.60-81,332.40-53,703.20

Finding the Fourth Proportional to 54,221.60, 81,332.40 and 53,703.20

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Solution

The fourth proportional to 54,221.60, 81,332.40 and 53,703.20 is: 80,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,221.60 : 81,332.40 = 53,703.20 : x
  2. Step 2: Convert to fraction form
    54,221.60/81,332.40 = 53,703.20/x
  3. Step 3: Cross multiply
    54,221.60x = 81,332.40 × 53,703.20
  4. Step 4: Simplify right side
    54,221.60x = 4,367,810,143.68
  5. Step 5: Solve for x
    x = 4,367,810,143.68/54,221.60
  6. Step 6: Final answer
    x = 80,554.80

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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.