Home / 81,583.52-112,375.50-57,669.08

Finding the Fourth Proportional to 81,583.52, 112,375.50 and 57,669.08

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Solution

The fourth proportional to 81,583.52, 112,375.50 and 57,669.08 is: 79,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583.52 : 112,375.50 = 57,669.08 : x
  2. Step 2: Convert to fraction form
    81,583.52/112,375.50 = 57,669.08/x
  3. Step 3: Cross multiply
    81,583.52x = 112,375.50 × 57,669.08
  4. Step 4: Simplify right side
    81,583.52x = 6,480,591,699.54
  5. Step 5: Solve for x
    x = 6,480,591,699.54/81,583.52
  6. Step 6: Final answer
    x = 79,435.06

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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.