Home / 90,251.12-124,541.81-49,407.42

Finding the Fourth Proportional to 90,251.12, 124,541.81 and 49,407.42

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Solution

The fourth proportional to 90,251.12, 124,541.81 and 49,407.42 is: 68,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,251.12 : 124,541.81 = 49,407.42 : x
  2. Step 2: Convert to fraction form
    90,251.12/124,541.81 = 49,407.42/x
  3. Step 3: Cross multiply
    90,251.12x = 124,541.81 × 49,407.42
  4. Step 4: Simplify right side
    90,251.12x = 6,153,289,833.37
  5. Step 5: Solve for x
    x = 6,153,289,833.37/90,251.12
  6. Step 6: Final answer
    x = 68,179.65

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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.