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Finding the Fourth Proportional to 66,232.74, 99,339.38 and 21,860.94

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Solution

The fourth proportional to 66,232.74, 99,339.38 and 21,860.94 is: 32,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,232.74 : 99,339.38 = 21,860.94 : x
  2. Step 2: Convert to fraction form
    66,232.74/99,339.38 = 21,860.94/x
  3. Step 3: Cross multiply
    66,232.74x = 99,339.38 × 21,860.94
  4. Step 4: Simplify right side
    66,232.74x = 2,171,651,729.12
  5. Step 5: Solve for x
    x = 2,171,651,729.12/66,232.74
  6. Step 6: Final answer
    x = 32,788.19

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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.