Home / 92,912.43-139,368.65-40,320.75

Finding the Fourth Proportional to 92,912.43, 139,368.65 and 40,320.75

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Solution

The fourth proportional to 92,912.43, 139,368.65 and 40,320.75 is: 60,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,912.43 : 139,368.65 = 40,320.75 : x
  2. Step 2: Convert to fraction form
    92,912.43/139,368.65 = 40,320.75/x
  3. Step 3: Cross multiply
    92,912.43x = 139,368.65 × 40,320.75
  4. Step 4: Simplify right side
    92,912.43x = 5,619,448,494.49
  5. Step 5: Solve for x
    x = 5,619,448,494.49/92,912.43
  6. Step 6: Final answer
    x = 60,481.13

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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.