Home / 66,222.52-99,350.34-21,851.80

Finding the Fourth Proportional to 66,222.52, 99,350.34 and 21,851.80

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Solution

The fourth proportional to 66,222.52, 99,350.34 and 21,851.80 is: 32,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,222.52 : 99,350.34 = 21,851.80 : x
  2. Step 2: Convert to fraction form
    66,222.52/99,350.34 = 21,851.80/x
  3. Step 3: Cross multiply
    66,222.52x = 99,350.34 × 21,851.80
  4. Step 4: Simplify right side
    66,222.52x = 2,170,983,759.61
  5. Step 5: Solve for x
    x = 2,170,983,759.61/66,222.52
  6. Step 6: Final answer
    x = 32,783.16

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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.