Home / 67,937.50-101,917.77-21,181.06

Finding the Fourth Proportional to 67,937.50, 101,917.77 and 21,181.06

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Solution

The fourth proportional to 67,937.50, 101,917.77 and 21,181.06 is: 31,775.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,937.50 : 101,917.77 = 21,181.06 : x
  2. Step 2: Convert to fraction form
    67,937.50/101,917.77 = 21,181.06/x
  3. Step 3: Cross multiply
    67,937.50x = 101,917.77 × 21,181.06
  4. Step 4: Simplify right side
    67,937.50x = 2,158,726,401.44
  5. Step 5: Solve for x
    x = 2,158,726,401.44/67,937.50
  6. Step 6: Final answer
    x = 31,775.18

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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.