Home / 90,658.44-125,117.10-54,857.28

Finding the Fourth Proportional to 90,658.44, 125,117.10 and 54,857.28

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Solution

The fourth proportional to 90,658.44, 125,117.10 and 54,857.28 is: 75,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658.44 : 125,117.10 = 54,857.28 : x
  2. Step 2: Convert to fraction form
    90,658.44/125,117.10 = 54,857.28/x
  3. Step 3: Cross multiply
    90,658.44x = 125,117.10 × 54,857.28
  4. Step 4: Simplify right side
    90,658.44x = 6,863,583,787.49
  5. Step 5: Solve for x
    x = 6,863,583,787.49/90,658.44
  6. Step 6: Final answer
    x = 75,708.16

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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.