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Finding the Fourth Proportional to 60,370.50, 90,560.75 and 18,817.50

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Solution

The fourth proportional to 60,370.50, 90,560.75 and 18,817.50 is: 28,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,370.50 : 90,560.75 = 18,817.50 : x
  2. Step 2: Convert to fraction form
    60,370.50/90,560.75 = 18,817.50/x
  3. Step 3: Cross multiply
    60,370.50x = 90,560.75 × 18,817.50
  4. Step 4: Simplify right side
    60,370.50x = 1,704,126,819.04
  5. Step 5: Solve for x
    x = 1,704,126,819.04/60,370.50
  6. Step 6: Final answer
    x = 28,227.81

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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.