Home / 66,909.10-100,380.52-47,226.10

Finding the Fourth Proportional to 66,909.10, 100,380.52 and 47,226.10

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Solution

The fourth proportional to 66,909.10, 100,380.52 and 47,226.10 is: 70,851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.10 : 100,380.52 = 47,226.10 : x
  2. Step 2: Convert to fraction form
    66,909.10/100,380.52 = 47,226.10/x
  3. Step 3: Cross multiply
    66,909.10x = 100,380.52 × 47,226.10
  4. Step 4: Simplify right side
    66,909.10x = 4,740,580,475.57
  5. Step 5: Solve for x
    x = 4,740,580,475.57/66,909.10
  6. Step 6: Final answer
    x = 70,851.06

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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.