Home / 47,131.86-70,640.25-22,138.53

Finding the Fourth Proportional to 47,131.86, 70,640.25 and 22,138.53

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Solution

The fourth proportional to 47,131.86, 70,640.25 and 22,138.53 is: 33,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,131.86 : 70,640.25 = 22,138.53 : x
  2. Step 2: Convert to fraction form
    47,131.86/70,640.25 = 22,138.53/x
  3. Step 3: Cross multiply
    47,131.86x = 70,640.25 × 22,138.53
  4. Step 4: Simplify right side
    47,131.86x = 1,563,871,293.83
  5. Step 5: Solve for x
    x = 1,563,871,293.83/47,131.86
  6. Step 6: Final answer
    x = 33,180.77

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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.