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Finding the Fourth Proportional to 88,869.60, 133,401.60 and 55,627.20

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Solution

The fourth proportional to 88,869.60, 133,401.60 and 55,627.20 is: 83,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,869.60 : 133,401.60 = 55,627.20 : x
  2. Step 2: Convert to fraction form
    88,869.60/133,401.60 = 55,627.20/x
  3. Step 3: Cross multiply
    88,869.60x = 133,401.60 × 55,627.20
  4. Step 4: Simplify right side
    88,869.60x = 7,420,757,483.52
  5. Step 5: Solve for x
    x = 7,420,757,483.52/88,869.60
  6. Step 6: Final answer
    x = 83,501.64

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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.