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Finding the Fourth Proportional to 75,721.98, 104,499.84 and 43,900.86

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Solution

The fourth proportional to 75,721.98, 104,499.84 and 43,900.86 is: 60,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,721.98 : 104,499.84 = 43,900.86 : x
  2. Step 2: Convert to fraction form
    75,721.98/104,499.84 = 43,900.86/x
  3. Step 3: Cross multiply
    75,721.98x = 104,499.84 × 43,900.86
  4. Step 4: Simplify right side
    75,721.98x = 4,587,632,845.86
  5. Step 5: Solve for x
    x = 4,587,632,845.86/75,721.98
  6. Step 6: Final answer
    x = 60,585.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.