Home / 54,750.04-75,490.28-38,620

Finding the Fourth Proportional to 54,750.04, 75,490.28 and 38,620

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Solution

The fourth proportional to 54,750.04, 75,490.28 and 38,620 is: 53,249.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,750.04 : 75,490.28 = 38,620 : x
  2. Step 2: Convert to fraction form
    54,750.04/75,490.28 = 38,620/x
  3. Step 3: Cross multiply
    54,750.04x = 75,490.28 × 38,620
  4. Step 4: Simplify right side
    54,750.04x = 2,915,434,613.60
  5. Step 5: Solve for x
    x = 2,915,434,613.60/54,750.04
  6. Step 6: Final answer
    x = 53,249.91

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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.