Home / 66,177.20-99,279.40-21,806.56

Finding the Fourth Proportional to 66,177.20, 99,279.40 and 21,806.56

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Solution

The fourth proportional to 66,177.20, 99,279.40 and 21,806.56 is: 32,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,177.20 : 99,279.40 = 21,806.56 : x
  2. Step 2: Convert to fraction form
    66,177.20/99,279.40 = 21,806.56/x
  3. Step 3: Cross multiply
    66,177.20x = 99,279.40 × 21,806.56
  4. Step 4: Simplify right side
    66,177.20x = 2,164,942,192.86
  5. Step 5: Solve for x
    x = 2,164,942,192.86/66,177.20
  6. Step 6: Final answer
    x = 32,714.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.