Home / 55,659.20-83,294.40-38,940.80

Finding the Fourth Proportional to 55,659.20, 83,294.40 and 38,940.80

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Solution

The fourth proportional to 55,659.20, 83,294.40 and 38,940.80 is: 58,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,659.20 : 83,294.40 = 38,940.80 : x
  2. Step 2: Convert to fraction form
    55,659.20/83,294.40 = 38,940.80/x
  3. Step 3: Cross multiply
    55,659.20x = 83,294.40 × 38,940.80
  4. Step 4: Simplify right side
    55,659.20x = 3,243,550,571.52
  5. Step 5: Solve for x
    x = 3,243,550,571.52/55,659.20
  6. Step 6: Final answer
    x = 58,275.19

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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.