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Finding the Fourth Proportional to 67,502.76, 101,265.07 and 20,755.63

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Solution

The fourth proportional to 67,502.76, 101,265.07 and 20,755.63 is: 31,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,502.76 : 101,265.07 = 20,755.63 : x
  2. Step 2: Convert to fraction form
    67,502.76/101,265.07 = 20,755.63/x
  3. Step 3: Cross multiply
    67,502.76x = 101,265.07 × 20,755.63
  4. Step 4: Simplify right side
    67,502.76x = 2,101,820,324.84
  5. Step 5: Solve for x
    x = 2,101,820,324.84/67,502.76
  6. Step 6: Final answer
    x = 31,136.81

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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.