Home / 81,731.70-112,775.52-45,923.22

Finding the Fourth Proportional to 81,731.70, 112,775.52 and 45,923.22

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Solution

The fourth proportional to 81,731.70, 112,775.52 and 45,923.22 is: 63,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,731.70 : 112,775.52 = 45,923.22 : x
  2. Step 2: Convert to fraction form
    81,731.70/112,775.52 = 45,923.22/x
  3. Step 3: Cross multiply
    81,731.70x = 112,775.52 × 45,923.22
  4. Step 4: Simplify right side
    81,731.70x = 5,179,014,451.70
  5. Step 5: Solve for x
    x = 5,179,014,451.70/81,731.70
  6. Step 6: Final answer
    x = 63,366.05

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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.