Home / 81,264.57-112,173.35-55,855.23

Finding the Fourth Proportional to 81,264.57, 112,173.35 and 55,855.23

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Solution

The fourth proportional to 81,264.57, 112,173.35 and 55,855.23 is: 77,099.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,264.57 : 112,173.35 = 55,855.23 : x
  2. Step 2: Convert to fraction form
    81,264.57/112,173.35 = 55,855.23/x
  3. Step 3: Cross multiply
    81,264.57x = 112,173.35 × 55,855.23
  4. Step 4: Simplify right side
    81,264.57x = 6,265,468,264.12
  5. Step 5: Solve for x
    x = 6,265,468,264.12/81,264.57
  6. Step 6: Final answer
    x = 77,099.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.