Home / 75,013.74-112,511.91-30,054.48

Finding the Fourth Proportional to 75,013.74, 112,511.91 and 30,054.48

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Solution

The fourth proportional to 75,013.74, 112,511.91 and 30,054.48 is: 45,078.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,013.74 : 112,511.91 = 30,054.48 : x
  2. Step 2: Convert to fraction form
    75,013.74/112,511.91 = 30,054.48/x
  3. Step 3: Cross multiply
    75,013.74x = 112,511.91 × 30,054.48
  4. Step 4: Simplify right side
    75,013.74x = 3,381,486,948.86
  5. Step 5: Solve for x
    x = 3,381,486,948.86/75,013.74
  6. Step 6: Final answer
    x = 45,078.23

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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.