Home / 57,172.80-85,837.75-29,111.70

Finding the Fourth Proportional to 57,172.80, 85,837.75 and 29,111.70

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Solution

The fourth proportional to 57,172.80, 85,837.75 and 29,111.70 is: 43,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,172.80 : 85,837.75 = 29,111.70 : x
  2. Step 2: Convert to fraction form
    57,172.80/85,837.75 = 29,111.70/x
  3. Step 3: Cross multiply
    57,172.80x = 85,837.75 × 29,111.70
  4. Step 4: Simplify right side
    57,172.80x = 2,498,882,826.68
  5. Step 5: Solve for x
    x = 2,498,882,826.68/57,172.80
  6. Step 6: Final answer
    x = 43,707.55

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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.