Home / 67,731.38-101,370.39-66,835.25

Finding the Fourth Proportional to 67,731.38, 101,370.39 and 66,835.25

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Solution

The fourth proportional to 67,731.38, 101,370.39 and 66,835.25 is: 100,029.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,731.38 : 101,370.39 = 66,835.25 : x
  2. Step 2: Convert to fraction form
    67,731.38/101,370.39 = 66,835.25/x
  3. Step 3: Cross multiply
    67,731.38x = 101,370.39 × 66,835.25
  4. Step 4: Simplify right side
    67,731.38x = 6,775,114,851.40
  5. Step 5: Solve for x
    x = 6,775,114,851.40/67,731.38
  6. Step 6: Final answer
    x = 100,029.19

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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.