Home / 75,520.84-104,221.40-41,530.72

Finding the Fourth Proportional to 75,520.84, 104,221.40 and 41,530.72

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Solution

The fourth proportional to 75,520.84, 104,221.40 and 41,530.72 is: 57,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,520.84 : 104,221.40 = 41,530.72 : x
  2. Step 2: Convert to fraction form
    75,520.84/104,221.40 = 41,530.72/x
  3. Step 3: Cross multiply
    75,520.84x = 104,221.40 × 41,530.72
  4. Step 4: Simplify right side
    75,520.84x = 4,328,389,781.41
  5. Step 5: Solve for x
    x = 4,328,389,781.41/75,520.84
  6. Step 6: Final answer
    x = 57,313.85

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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.