Home / 66,924.20-100,386.30-51,177.80

Finding the Fourth Proportional to 66,924.20, 100,386.30 and 51,177.80

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Solution

The fourth proportional to 66,924.20, 100,386.30 and 51,177.80 is: 76,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,924.20 : 100,386.30 = 51,177.80 : x
  2. Step 2: Convert to fraction form
    66,924.20/100,386.30 = 51,177.80/x
  3. Step 3: Cross multiply
    66,924.20x = 100,386.30 × 51,177.80
  4. Step 4: Simplify right side
    66,924.20x = 5,137,549,984.14
  5. Step 5: Solve for x
    x = 5,137,549,984.14/66,924.20
  6. Step 6: Final answer
    x = 76,766.70

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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.