Home / 81,029.34-111,826.10-45,226.33

Finding the Fourth Proportional to 81,029.34, 111,826.10 and 45,226.33

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Solution

The fourth proportional to 81,029.34, 111,826.10 and 45,226.33 is: 62,415.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,029.34 : 111,826.10 = 45,226.33 : x
  2. Step 2: Convert to fraction form
    81,029.34/111,826.10 = 45,226.33/x
  3. Step 3: Cross multiply
    81,029.34x = 111,826.10 × 45,226.33
  4. Step 4: Simplify right side
    81,029.34x = 5,057,483,934.71
  5. Step 5: Solve for x
    x = 5,057,483,934.71/81,029.34
  6. Step 6: Final answer
    x = 62,415.46

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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.