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Finding the Fourth Proportional to 40,345.60, 60,489.60 and 22,820.80

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Solution

The fourth proportional to 40,345.60, 60,489.60 and 22,820.80 is: 34,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,345.60 : 60,489.60 = 22,820.80 : x
  2. Step 2: Convert to fraction form
    40,345.60/60,489.60 = 22,820.80/x
  3. Step 3: Cross multiply
    40,345.60x = 60,489.60 × 22,820.80
  4. Step 4: Simplify right side
    40,345.60x = 1,380,421,063.68
  5. Step 5: Solve for x
    x = 1,380,421,063.68/40,345.60
  6. Step 6: Final answer
    x = 34,214.91

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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.