Home / 64,407.08-88,882.68-38,909.90

Finding the Fourth Proportional to 64,407.08, 88,882.68 and 38,909.90

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Solution

The fourth proportional to 64,407.08, 88,882.68 and 38,909.90 is: 53,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,407.08 : 88,882.68 = 38,909.90 : x
  2. Step 2: Convert to fraction form
    64,407.08/88,882.68 = 38,909.90/x
  3. Step 3: Cross multiply
    64,407.08x = 88,882.68 × 38,909.90
  4. Step 4: Simplify right side
    64,407.08x = 3,458,416,558.65
  5. Step 5: Solve for x
    x = 3,458,416,558.65/64,407.08
  6. Step 6: Final answer
    x = 53,696.22

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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.