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Finding the Fourth Proportional to 66,785.45, 100,177.34 and 26,822.13

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Solution

The fourth proportional to 66,785.45, 100,177.34 and 26,822.13 is: 40,232.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.45 : 100,177.34 = 26,822.13 : x
  2. Step 2: Convert to fraction form
    66,785.45/100,177.34 = 26,822.13/x
  3. Step 3: Cross multiply
    66,785.45x = 100,177.34 × 26,822.13
  4. Step 4: Simplify right side
    66,785.45x = 2,686,969,636.53
  5. Step 5: Solve for x
    x = 2,686,969,636.53/66,785.45
  6. Step 6: Final answer
    x = 40,232.86

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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.