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Finding the Fourth Proportional to 66,449.40, 99,479.70 and 44,287.80

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Solution

The fourth proportional to 66,449.40, 99,479.70 and 44,287.80 is: 66,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,449.40 : 99,479.70 = 44,287.80 : x
  2. Step 2: Convert to fraction form
    66,449.40/99,479.70 = 44,287.80/x
  3. Step 3: Cross multiply
    66,449.40x = 99,479.70 × 44,287.80
  4. Step 4: Simplify right side
    66,449.40x = 4,405,737,057.66
  5. Step 5: Solve for x
    x = 4,405,737,057.66/66,449.40
  6. Step 6: Final answer
    x = 66,302.13

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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.