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Finding the Fourth Proportional to 60,550.50, 90,840.33 and 18,997.50

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Solution

The fourth proportional to 60,550.50, 90,840.33 and 18,997.50 is: 28,500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,550.50 : 90,840.33 = 18,997.50 : x
  2. Step 2: Convert to fraction form
    60,550.50/90,840.33 = 18,997.50/x
  3. Step 3: Cross multiply
    60,550.50x = 90,840.33 × 18,997.50
  4. Step 4: Simplify right side
    60,550.50x = 1,725,739,169.18
  5. Step 5: Solve for x
    x = 1,725,739,169.18/60,550.50
  6. Step 6: Final answer
    x = 28,500.82

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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.