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Finding the Fourth Proportional to 67,887.70, 101,846.16 and 20,498.82

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Solution

The fourth proportional to 67,887.70, 101,846.16 and 20,498.82 is: 30,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,887.70 : 101,846.16 = 20,498.82 : x
  2. Step 2: Convert to fraction form
    67,887.70/101,846.16 = 20,498.82/x
  3. Step 3: Cross multiply
    67,887.70x = 101,846.16 × 20,498.82
  4. Step 4: Simplify right side
    67,887.70x = 2,087,726,101.53
  5. Step 5: Solve for x
    x = 2,087,726,101.53/67,887.70
  6. Step 6: Final answer
    x = 30,752.64

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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.