Home / 66,142.42-99,176.27-21,757.25

Finding the Fourth Proportional to 66,142.42, 99,176.27 and 21,757.25

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Solution

The fourth proportional to 66,142.42, 99,176.27 and 21,757.25 is: 32,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142.42 : 99,176.27 = 21,757.25 : x
  2. Step 2: Convert to fraction form
    66,142.42/99,176.27 = 21,757.25/x
  3. Step 3: Cross multiply
    66,142.42x = 99,176.27 × 21,757.25
  4. Step 4: Simplify right side
    66,142.42x = 2,157,803,039.61
  5. Step 5: Solve for x
    x = 2,157,803,039.61/66,142.42
  6. Step 6: Final answer
    x = 32,623.59

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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.