Home / 90,566.96-124,979.98-54,288.90

Finding the Fourth Proportional to 90,566.96, 124,979.98 and 54,288.90

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Solution

The fourth proportional to 90,566.96, 124,979.98 and 54,288.90 is: 74,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,566.96 : 124,979.98 = 54,288.90 : x
  2. Step 2: Convert to fraction form
    90,566.96/124,979.98 = 54,288.90/x
  3. Step 3: Cross multiply
    90,566.96x = 124,979.98 × 54,288.90
  4. Step 4: Simplify right side
    90,566.96x = 6,785,025,364.78
  5. Step 5: Solve for x
    x = 6,785,025,364.78/90,566.96
  6. Step 6: Final answer
    x = 74,917.23

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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.