Home / 81,869.26-122,803.89-29,275.56

Finding the Fourth Proportional to 81,869.26, 122,803.89 and 29,275.56

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Solution

The fourth proportional to 81,869.26, 122,803.89 and 29,275.56 is: 43,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,869.26 : 122,803.89 = 29,275.56 : x
  2. Step 2: Convert to fraction form
    81,869.26/122,803.89 = 29,275.56/x
  3. Step 3: Cross multiply
    81,869.26x = 122,803.89 × 29,275.56
  4. Step 4: Simplify right side
    81,869.26x = 3,595,152,649.93
  5. Step 5: Solve for x
    x = 3,595,152,649.93/81,869.26
  6. Step 6: Final answer
    x = 43,913.34

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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.