Home / 90,209.40-124,485.90-49,924.86

Finding the Fourth Proportional to 90,209.40, 124,485.90 and 49,924.86

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Solution

The fourth proportional to 90,209.40, 124,485.90 and 49,924.86 is: 68,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,209.40 : 124,485.90 = 49,924.86 : x
  2. Step 2: Convert to fraction form
    90,209.40/124,485.90 = 49,924.86/x
  3. Step 3: Cross multiply
    90,209.40x = 124,485.90 × 49,924.86
  4. Step 4: Simplify right side
    90,209.40x = 6,214,941,129.47
  5. Step 5: Solve for x
    x = 6,214,941,129.47/90,209.40
  6. Step 6: Final answer
    x = 68,894.61

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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.