Home / 75,375.39-113,064.02-19,215.48

Finding the Fourth Proportional to 75,375.39, 113,064.02 and 19,215.48

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Solution

The fourth proportional to 75,375.39, 113,064.02 and 19,215.48 is: 28,823.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,375.39 : 113,064.02 = 19,215.48 : x
  2. Step 2: Convert to fraction form
    75,375.39/113,064.02 = 19,215.48/x
  3. Step 3: Cross multiply
    75,375.39x = 113,064.02 × 19,215.48
  4. Step 4: Simplify right side
    75,375.39x = 2,172,579,318.95
  5. Step 5: Solve for x
    x = 2,172,579,318.95/75,375.39
  6. Step 6: Final answer
    x = 28,823.46

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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.