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Finding the Fourth Proportional to 60,144.93, 90,220.37 and 15,771.78

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Solution

The fourth proportional to 60,144.93, 90,220.37 and 15,771.78 is: 23,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,144.93 : 90,220.37 = 15,771.78 : x
  2. Step 2: Convert to fraction form
    60,144.93/90,220.37 = 15,771.78/x
  3. Step 3: Cross multiply
    60,144.93x = 90,220.37 × 15,771.78
  4. Step 4: Simplify right side
    60,144.93x = 1,422,935,748.30
  5. Step 5: Solve for x
    x = 1,422,935,748.30/60,144.93
  6. Step 6: Final answer
    x = 23,658.45

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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.