Home / 64,974.20-89,622.12-45,881.72

Finding the Fourth Proportional to 64,974.20, 89,622.12 and 45,881.72

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Solution

The fourth proportional to 64,974.20, 89,622.12 and 45,881.72 is: 63,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,974.20 : 89,622.12 = 45,881.72 : x
  2. Step 2: Convert to fraction form
    64,974.20/89,622.12 = 45,881.72/x
  3. Step 3: Cross multiply
    64,974.20x = 89,622.12 × 45,881.72
  4. Step 4: Simplify right side
    64,974.20x = 4,112,017,015.65
  5. Step 5: Solve for x
    x = 4,112,017,015.65/64,974.20
  6. Step 6: Final answer
    x = 63,286.92

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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.