Home / 64,631.88-96,949.04-20,257.65

Finding the Fourth Proportional to 64,631.88, 96,949.04 and 20,257.65

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Solution

The fourth proportional to 64,631.88, 96,949.04 and 20,257.65 is: 30,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,631.88 : 96,949.04 = 20,257.65 : x
  2. Step 2: Convert to fraction form
    64,631.88/96,949.04 = 20,257.65/x
  3. Step 3: Cross multiply
    64,631.88x = 96,949.04 × 20,257.65
  4. Step 4: Simplify right side
    64,631.88x = 1,963,959,618.87
  5. Step 5: Solve for x
    x = 1,963,959,618.87/64,631.88
  6. Step 6: Final answer
    x = 30,386.86

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1.5x scale

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.