Home / 90,734.16-125,184.24-54,912.72

Finding the Fourth Proportional to 90,734.16, 125,184.24 and 54,912.72

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Solution

The fourth proportional to 90,734.16, 125,184.24 and 54,912.72 is: 75,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,734.16 : 125,184.24 = 54,912.72 : x
  2. Step 2: Convert to fraction form
    90,734.16/125,184.24 = 54,912.72/x
  3. Step 3: Cross multiply
    90,734.16x = 125,184.24 × 54,912.72
  4. Step 4: Simplify right side
    90,734.16x = 6,874,207,119.53
  5. Step 5: Solve for x
    x = 6,874,207,119.53/90,734.16
  6. Step 6: Final answer
    x = 75,762.06

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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.