Home / 66,375.36-99,524.70-21,990.15

Finding the Fourth Proportional to 66,375.36, 99,524.70 and 21,990.15

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Solution

The fourth proportional to 66,375.36, 99,524.70 and 21,990.15 is: 32,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,375.36 : 99,524.70 = 21,990.15 : x
  2. Step 2: Convert to fraction form
    66,375.36/99,524.70 = 21,990.15/x
  3. Step 3: Cross multiply
    66,375.36x = 99,524.70 × 21,990.15
  4. Step 4: Simplify right side
    66,375.36x = 2,188,563,081.71
  5. Step 5: Solve for x
    x = 2,188,563,081.71/66,375.36
  6. Step 6: Final answer
    x = 32,972.52

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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.