Home / 67,220.16-100,851.43-31,680.04

Finding the Fourth Proportional to 67,220.16, 100,851.43 and 31,680.04

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Solution

The fourth proportional to 67,220.16, 100,851.43 and 31,680.04 is: 47,530.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220.16 : 100,851.43 = 31,680.04 : x
  2. Step 2: Convert to fraction form
    67,220.16/100,851.43 = 31,680.04/x
  3. Step 3: Cross multiply
    67,220.16x = 100,851.43 × 31,680.04
  4. Step 4: Simplify right side
    67,220.16x = 3,194,977,005.13
  5. Step 5: Solve for x
    x = 3,194,977,005.13/67,220.16
  6. Step 6: Final answer
    x = 47,530.04

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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.