Home / 54,505.04-75,217.20-30,639.92

Finding the Fourth Proportional to 54,505.04, 75,217.20 and 30,639.92

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Solution

The fourth proportional to 54,505.04, 75,217.20 and 30,639.92 is: 42,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,505.04 : 75,217.20 = 30,639.92 : x
  2. Step 2: Convert to fraction form
    54,505.04/75,217.20 = 30,639.92/x
  3. Step 3: Cross multiply
    54,505.04x = 75,217.20 × 30,639.92
  4. Step 4: Simplify right side
    54,505.04x = 2,304,648,990.62
  5. Step 5: Solve for x
    x = 2,304,648,990.62/54,505.04
  6. Step 6: Final answer
    x = 42,283.23

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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.