Home / 57,012.68-78,671.40-33,134.36

Finding the Fourth Proportional to 57,012.68, 78,671.40 and 33,134.36

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Solution

The fourth proportional to 57,012.68, 78,671.40 and 33,134.36 is: 45,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,012.68 : 78,671.40 = 33,134.36 : x
  2. Step 2: Convert to fraction form
    57,012.68/78,671.40 = 33,134.36/x
  3. Step 3: Cross multiply
    57,012.68x = 78,671.40 × 33,134.36
  4. Step 4: Simplify right side
    57,012.68x = 2,606,726,489.30
  5. Step 5: Solve for x
    x = 2,606,726,489.30/57,012.68
  6. Step 6: Final answer
    x = 45,721.87

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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.