Home / 90,194.10-124,468-49,909.56

Finding the Fourth Proportional to 90,194.10, 124,468 and 49,909.56

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Solution

The fourth proportional to 90,194.10, 124,468 and 49,909.56 is: 68,875.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,194.10 : 124,468 = 49,909.56 : x
  2. Step 2: Convert to fraction form
    90,194.10/124,468 = 49,909.56/x
  3. Step 3: Cross multiply
    90,194.10x = 124,468 × 49,909.56
  4. Step 4: Simplify right side
    90,194.10x = 6,212,143,114.08
  5. Step 5: Solve for x
    x = 6,212,143,114.08/90,194.10
  6. Step 6: Final answer
    x = 68,875.27

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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.