Home / 71,391.92-98,521.44-39,561.35

Finding the Fourth Proportional to 71,391.92, 98,521.44 and 39,561.35

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Solution

The fourth proportional to 71,391.92, 98,521.44 and 39,561.35 is: 54,594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,391.92 : 98,521.44 = 39,561.35 : x
  2. Step 2: Convert to fraction form
    71,391.92/98,521.44 = 39,561.35/x
  3. Step 3: Cross multiply
    71,391.92x = 98,521.44 × 39,561.35
  4. Step 4: Simplify right side
    71,391.92x = 3,897,641,416.65
  5. Step 5: Solve for x
    x = 3,897,641,416.65/71,391.92
  6. Step 6: Final answer
    x = 54,594.99

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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.