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Finding the Fourth Proportional to 66,490.80, 99,736.20 and 24,932.40

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Solution

The fourth proportional to 66,490.80, 99,736.20 and 24,932.40 is: 37,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490.80 : 99,736.20 = 24,932.40 : x
  2. Step 2: Convert to fraction form
    66,490.80/99,736.20 = 24,932.40/x
  3. Step 3: Cross multiply
    66,490.80x = 99,736.20 × 24,932.40
  4. Step 4: Simplify right side
    66,490.80x = 2,486,662,832.88
  5. Step 5: Solve for x
    x = 2,486,662,832.88/66,490.80
  6. Step 6: Final answer
    x = 37,398.60

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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.