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Finding the Fourth Proportional to 66,310.80, 99,466.20 and 26,869.20

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Solution

The fourth proportional to 66,310.80, 99,466.20 and 26,869.20 is: 40,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.80 : 99,466.20 = 26,869.20 : x
  2. Step 2: Convert to fraction form
    66,310.80/99,466.20 = 26,869.20/x
  3. Step 3: Cross multiply
    66,310.80x = 99,466.20 × 26,869.20
  4. Step 4: Simplify right side
    66,310.80x = 2,672,577,221.04
  5. Step 5: Solve for x
    x = 2,672,577,221.04/66,310.80
  6. Step 6: Final answer
    x = 40,303.80

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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.