Home / 90,637.67-125,077.27-49,801.72

Finding the Fourth Proportional to 90,637.67, 125,077.27 and 49,801.72

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Solution

The fourth proportional to 90,637.67, 125,077.27 and 49,801.72 is: 68,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,637.67 : 125,077.27 = 49,801.72 : x
  2. Step 2: Convert to fraction form
    90,637.67/125,077.27 = 49,801.72/x
  3. Step 3: Cross multiply
    90,637.67x = 125,077.27 × 49,801.72
  4. Step 4: Simplify right side
    90,637.67x = 6,229,063,304.12
  5. Step 5: Solve for x
    x = 6,229,063,304.12/90,637.67
  6. Step 6: Final answer
    x = 68,724.88

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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.