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Finding the Fourth Proportional to 60,588.54, 90,887.67 and 21,144.78

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Solution

The fourth proportional to 60,588.54, 90,887.67 and 21,144.78 is: 31,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,588.54 : 90,887.67 = 21,144.78 : x
  2. Step 2: Convert to fraction form
    60,588.54/90,887.67 = 21,144.78/x
  3. Step 3: Cross multiply
    60,588.54x = 90,887.67 × 21,144.78
  4. Step 4: Simplify right side
    60,588.54x = 1,921,799,786.86
  5. Step 5: Solve for x
    x = 1,921,799,786.86/60,588.54
  6. Step 6: Final answer
    x = 31,718.87

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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.