Home / 77,280.89-115,887.92-26,685.26

Finding the Fourth Proportional to 77,280.89, 115,887.92 and 26,685.26

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Solution

The fourth proportional to 77,280.89, 115,887.92 and 26,685.26 is: 40,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280.89 : 115,887.92 = 26,685.26 : x
  2. Step 2: Convert to fraction form
    77,280.89/115,887.92 = 26,685.26/x
  3. Step 3: Cross multiply
    77,280.89x = 115,887.92 × 26,685.26
  4. Step 4: Simplify right side
    77,280.89x = 3,092,498,563.19
  5. Step 5: Solve for x
    x = 3,092,498,563.19/77,280.89
  6. Step 6: Final answer
    x = 40,016.34

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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.