Home / 81,989.15-122,983.74-63,296.47

Finding the Fourth Proportional to 81,989.15, 122,983.74 and 63,296.47

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Solution

The fourth proportional to 81,989.15, 122,983.74 and 63,296.47 is: 94,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,989.15 : 122,983.74 = 63,296.47 : x
  2. Step 2: Convert to fraction form
    81,989.15/122,983.74 = 63,296.47/x
  3. Step 3: Cross multiply
    81,989.15x = 122,983.74 × 63,296.47
  4. Step 4: Simplify right side
    81,989.15x = 7,784,436,301.94
  5. Step 5: Solve for x
    x = 7,784,436,301.94/81,989.15
  6. Step 6: Final answer
    x = 94,944.72

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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.