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Finding the Fourth Proportional to 77,552.64, 116,363.52 and 40,608

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Solution

The fourth proportional to 77,552.64, 116,363.52 and 40,608 is: 60,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,552.64 : 116,363.52 = 40,608 : x
  2. Step 2: Convert to fraction form
    77,552.64/116,363.52 = 40,608/x
  3. Step 3: Cross multiply
    77,552.64x = 116,363.52 × 40,608
  4. Step 4: Simplify right side
    77,552.64x = 4,725,289,820.16
  5. Step 5: Solve for x
    x = 4,725,289,820.16/77,552.64
  6. Step 6: Final answer
    x = 60,930.10

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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.