Home / 66,870.20-100,344.18-27,455.60

Finding the Fourth Proportional to 66,870.20, 100,344.18 and 27,455.60

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Solution

The fourth proportional to 66,870.20, 100,344.18 and 27,455.60 is: 41,199.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.20 : 100,344.18 = 27,455.60 : x
  2. Step 2: Convert to fraction form
    66,870.20/100,344.18 = 27,455.60/x
  3. Step 3: Cross multiply
    66,870.20x = 100,344.18 × 27,455.60
  4. Step 4: Simplify right side
    66,870.20x = 2,755,009,668.41
  5. Step 5: Solve for x
    x = 2,755,009,668.41/66,870.20
  6. Step 6: Final answer
    x = 41,199.36

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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.