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Finding the Fourth Proportional to 99,552.82, 137,382.90 and 54,840.82

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Solution

The fourth proportional to 99,552.82, 137,382.90 and 54,840.82 is: 75,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,552.82 : 137,382.90 = 54,840.82 : x
  2. Step 2: Convert to fraction form
    99,552.82/137,382.90 = 54,840.82/x
  3. Step 3: Cross multiply
    99,552.82x = 137,382.90 × 54,840.82
  4. Step 4: Simplify right side
    99,552.82x = 7,534,190,889.98
  5. Step 5: Solve for x
    x = 7,534,190,889.98/99,552.82
  6. Step 6: Final answer
    x = 75,680.34

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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.