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Finding the Fourth Proportional to 88,980.80, 133,471.20 and 29,796.80

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Solution

The fourth proportional to 88,980.80, 133,471.20 and 29,796.80 is: 44,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,980.80 : 133,471.20 = 29,796.80 : x
  2. Step 2: Convert to fraction form
    88,980.80/133,471.20 = 29,796.80/x
  3. Step 3: Cross multiply
    88,980.80x = 133,471.20 × 29,796.80
  4. Step 4: Simplify right side
    88,980.80x = 3,977,014,652.16
  5. Step 5: Solve for x
    x = 3,977,014,652.16/88,980.80
  6. Step 6: Final answer
    x = 44,695.20

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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.