Home / 81,657.59-122,371.52-64,943.44

Finding the Fourth Proportional to 81,657.59, 122,371.52 and 64,943.44

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Solution

The fourth proportional to 81,657.59, 122,371.52 and 64,943.44 is: 97,323.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657.59 : 122,371.52 = 64,943.44 : x
  2. Step 2: Convert to fraction form
    81,657.59/122,371.52 = 64,943.44/x
  3. Step 3: Cross multiply
    81,657.59x = 122,371.52 × 64,943.44
  4. Step 4: Simplify right side
    81,657.59x = 7,947,227,466.83
  5. Step 5: Solve for x
    x = 7,947,227,466.83/81,657.59
  6. Step 6: Final answer
    x = 97,323.81

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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.