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Finding the Fourth Proportional to 90,197.32, 124,472.32 and 49,911.24

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Solution

The fourth proportional to 90,197.32, 124,472.32 and 49,911.24 is: 68,877.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,197.32 : 124,472.32 = 49,911.24 : x
  2. Step 2: Convert to fraction form
    90,197.32/124,472.32 = 49,911.24/x
  3. Step 3: Cross multiply
    90,197.32x = 124,472.32 × 49,911.24
  4. Step 4: Simplify right side
    90,197.32x = 6,212,567,619.09
  5. Step 5: Solve for x
    x = 6,212,567,619.09/90,197.32
  6. Step 6: Final answer
    x = 68,877.52

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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.