Home / 81,029.72-111,826.62-45,226.71

Finding the Fourth Proportional to 81,029.72, 111,826.62 and 45,226.71

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Solution

The fourth proportional to 81,029.72, 111,826.62 and 45,226.71 is: 62,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,029.72 : 111,826.62 = 45,226.71 : x
  2. Step 2: Convert to fraction form
    81,029.72/111,826.62 = 45,226.71/x
  3. Step 3: Cross multiply
    81,029.72x = 111,826.62 × 45,226.71
  4. Step 4: Simplify right side
    81,029.72x = 5,057,550,113.02
  5. Step 5: Solve for x
    x = 5,057,550,113.02/81,029.72
  6. Step 6: Final answer
    x = 62,415.99

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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.