Home / 75,235.24-112,673.40-43,578.40

Finding the Fourth Proportional to 75,235.24, 112,673.40 and 43,578.40

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Solution

The fourth proportional to 75,235.24, 112,673.40 and 43,578.40 is: 65,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,235.24 : 112,673.40 = 43,578.40 : x
  2. Step 2: Convert to fraction form
    75,235.24/112,673.40 = 43,578.40/x
  3. Step 3: Cross multiply
    75,235.24x = 112,673.40 × 43,578.40
  4. Step 4: Simplify right side
    75,235.24x = 4,910,126,494.56
  5. Step 5: Solve for x
    x = 4,910,126,494.56/75,235.24
  6. Step 6: Final answer
    x = 65,263.65

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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.