Home / 53,616.20-73,979.28-30,954.80

Finding the Fourth Proportional to 53,616.20, 73,979.28 and 30,954.80

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Solution

The fourth proportional to 53,616.20, 73,979.28 and 30,954.80 is: 42,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,616.20 : 73,979.28 = 30,954.80 : x
  2. Step 2: Convert to fraction form
    53,616.20/73,979.28 = 30,954.80/x
  3. Step 3: Cross multiply
    53,616.20x = 73,979.28 × 30,954.80
  4. Step 4: Simplify right side
    53,616.20x = 2,290,013,816.54
  5. Step 5: Solve for x
    x = 2,290,013,816.54/53,616.20
  6. Step 6: Final answer
    x = 42,711.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.