Home / 57,209.82-78,950.35-31,370.80

Finding the Fourth Proportional to 57,209.82, 78,950.35 and 31,370.80

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Solution

The fourth proportional to 57,209.82, 78,950.35 and 31,370.80 is: 43,292.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,209.82 : 78,950.35 = 31,370.80 : x
  2. Step 2: Convert to fraction form
    57,209.82/78,950.35 = 31,370.80/x
  3. Step 3: Cross multiply
    57,209.82x = 78,950.35 × 31,370.80
  4. Step 4: Simplify right side
    57,209.82x = 2,476,735,639.78
  5. Step 5: Solve for x
    x = 2,476,735,639.78/57,209.82
  6. Step 6: Final answer
    x = 43,292.14

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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.