Home / 90,021.96-124,240.86-54,230.04

Finding the Fourth Proportional to 90,021.96, 124,240.86 and 54,230.04

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Solution

The fourth proportional to 90,021.96, 124,240.86 and 54,230.04 is: 74,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,021.96 : 124,240.86 = 54,230.04 : x
  2. Step 2: Convert to fraction form
    90,021.96/124,240.86 = 54,230.04/x
  3. Step 3: Cross multiply
    90,021.96x = 124,240.86 × 54,230.04
  4. Step 4: Simplify right side
    90,021.96x = 6,737,586,807.43
  5. Step 5: Solve for x
    x = 6,737,586,807.43/90,021.96
  6. Step 6: Final answer
    x = 74,843.81

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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.