Home / 92,910.43-139,365.65-40,318.75

Finding the Fourth Proportional to 92,910.43, 139,365.65 and 40,318.75

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Solution

The fourth proportional to 92,910.43, 139,365.65 and 40,318.75 is: 60,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,910.43 : 139,365.65 = 40,318.75 : x
  2. Step 2: Convert to fraction form
    92,910.43/139,365.65 = 40,318.75/x
  3. Step 3: Cross multiply
    92,910.43x = 139,365.65 × 40,318.75
  4. Step 4: Simplify right side
    92,910.43x = 5,619,048,800.94
  5. Step 5: Solve for x
    x = 5,619,048,800.94/92,910.43
  6. Step 6: Final answer
    x = 60,478.13

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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.