Home / 80,533.47-111,131.78-44,721.21

Finding the Fourth Proportional to 80,533.47, 111,131.78 and 44,721.21

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Solution

The fourth proportional to 80,533.47, 111,131.78 and 44,721.21 is: 61,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,533.47 : 111,131.78 = 44,721.21 : x
  2. Step 2: Convert to fraction form
    80,533.47/111,131.78 = 44,721.21/x
  3. Step 3: Cross multiply
    80,533.47x = 111,131.78 × 44,721.21
  4. Step 4: Simplify right side
    80,533.47x = 4,969,947,447.45
  5. Step 5: Solve for x
    x = 4,969,947,447.45/80,533.47
  6. Step 6: Final answer
    x = 61,712.82

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1.5x scale

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.