Home / 77,279.89-115,886.42-26,684.25

Finding the Fourth Proportional to 77,279.89, 115,886.42 and 26,684.25

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Solution

The fourth proportional to 77,279.89, 115,886.42 and 26,684.25 is: 40,014.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,279.89 : 115,886.42 = 26,684.25 : x
  2. Step 2: Convert to fraction form
    77,279.89/115,886.42 = 26,684.25/x
  3. Step 3: Cross multiply
    77,279.89x = 115,886.42 × 26,684.25
  4. Step 4: Simplify right side
    77,279.89x = 3,092,342,069.46
  5. Step 5: Solve for x
    x = 3,092,342,069.46/77,279.89
  6. Step 6: Final answer
    x = 40,014.84

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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.