Home / 53,705.90-80,436.14-25,645.61

Finding the Fourth Proportional to 53,705.90, 80,436.14 and 25,645.61

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Solution

The fourth proportional to 53,705.90, 80,436.14 and 25,645.61 is: 38,409.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,705.90 : 80,436.14 = 25,645.61 : x
  2. Step 2: Convert to fraction form
    53,705.90/80,436.14 = 25,645.61/x
  3. Step 3: Cross multiply
    53,705.90x = 80,436.14 × 25,645.61
  4. Step 4: Simplify right side
    53,705.90x = 2,062,833,940.46
  5. Step 5: Solve for x
    x = 2,062,833,940.46/53,705.90
  6. Step 6: Final answer
    x = 38,409.82

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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.