Home / 42,542.58-63,716.67-20,371.53

Finding the Fourth Proportional to 42,542.58, 63,716.67 and 20,371.53

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Solution

The fourth proportional to 42,542.58, 63,716.67 and 20,371.53 is: 30,510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,542.58 : 63,716.67 = 20,371.53 : x
  2. Step 2: Convert to fraction form
    42,542.58/63,716.67 = 20,371.53/x
  3. Step 3: Cross multiply
    42,542.58x = 63,716.67 × 20,371.53
  4. Step 4: Simplify right side
    42,542.58x = 1,298,006,054.41
  5. Step 5: Solve for x
    x = 1,298,006,054.41/42,542.58
  6. Step 6: Final answer
    x = 30,510.75

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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.