Home / 90,860.13-125,400.42-54,564.03

Finding the Fourth Proportional to 90,860.13, 125,400.42 and 54,564.03

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Solution

The fourth proportional to 90,860.13, 125,400.42 and 54,564.03 is: 75,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,860.13 : 125,400.42 = 54,564.03 : x
  2. Step 2: Convert to fraction form
    90,860.13/125,400.42 = 54,564.03/x
  3. Step 3: Cross multiply
    90,860.13x = 125,400.42 × 54,564.03
  4. Step 4: Simplify right side
    90,860.13x = 6,842,352,278.89
  5. Step 5: Solve for x
    x = 6,842,352,278.89/90,860.13
  6. Step 6: Final answer
    x = 75,306.43

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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.