Home / 49,725.20-74,587.80-20,127.80

Finding the Fourth Proportional to 49,725.20, 74,587.80 and 20,127.80

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Solution

The fourth proportional to 49,725.20, 74,587.80 and 20,127.80 is: 30,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,725.20 : 74,587.80 = 20,127.80 : x
  2. Step 2: Convert to fraction form
    49,725.20/74,587.80 = 20,127.80/x
  3. Step 3: Cross multiply
    49,725.20x = 74,587.80 × 20,127.80
  4. Step 4: Simplify right side
    49,725.20x = 1,501,288,320.84
  5. Step 5: Solve for x
    x = 1,501,288,320.84/49,725.20
  6. Step 6: Final answer
    x = 30,191.70

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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.