Home / 90,571.46-124,986.18-54,293.40

Finding the Fourth Proportional to 90,571.46, 124,986.18 and 54,293.40

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Solution

The fourth proportional to 90,571.46, 124,986.18 and 54,293.40 is: 74,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,571.46 : 124,986.18 = 54,293.40 : x
  2. Step 2: Convert to fraction form
    90,571.46/124,986.18 = 54,293.40/x
  3. Step 3: Cross multiply
    90,571.46x = 124,986.18 × 54,293.40
  4. Step 4: Simplify right side
    90,571.46x = 6,785,924,665.21
  5. Step 5: Solve for x
    x = 6,785,924,665.21/90,571.46
  6. Step 6: Final answer
    x = 74,923.43

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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.