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Finding the Fourth Proportional to 89,924, 134,873.20 and 36,639.22

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Solution

The fourth proportional to 89,924, 134,873.20 and 36,639.22 is: 54,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,924 : 134,873.20 = 36,639.22 : x
  2. Step 2: Convert to fraction form
    89,924/134,873.20 = 36,639.22/x
  3. Step 3: Cross multiply
    89,924x = 134,873.20 × 36,639.22
  4. Step 4: Simplify right side
    89,924x = 4,941,648,846.90
  5. Step 5: Solve for x
    x = 4,941,648,846.90/89,924
  6. Step 6: Final answer
    x = 54,953.61

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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.