Home / 77,360.90-115,844.40-50,985.68

Finding the Fourth Proportional to 77,360.90, 115,844.40 and 50,985.68

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Solution

The fourth proportional to 77,360.90, 115,844.40 and 50,985.68 is: 76,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,360.90 : 115,844.40 = 50,985.68 : x
  2. Step 2: Convert to fraction form
    77,360.90/115,844.40 = 50,985.68/x
  3. Step 3: Cross multiply
    77,360.90x = 115,844.40 × 50,985.68
  4. Step 4: Simplify right side
    77,360.90x = 5,906,404,928.97
  5. Step 5: Solve for x
    x = 5,906,404,928.97/77,360.90
  6. Step 6: Final answer
    x = 76,348.72

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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.