Home / 81,581.45-112,594.12-45,291.22

Finding the Fourth Proportional to 81,581.45, 112,594.12 and 45,291.22

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Solution

The fourth proportional to 81,581.45, 112,594.12 and 45,291.22 is: 62,508.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,581.45 : 112,594.12 = 45,291.22 : x
  2. Step 2: Convert to fraction form
    81,581.45/112,594.12 = 45,291.22/x
  3. Step 3: Cross multiply
    81,581.45x = 112,594.12 × 45,291.22
  4. Step 4: Simplify right side
    81,581.45x = 5,099,524,664.91
  5. Step 5: Solve for x
    x = 5,099,524,664.91/81,581.45
  6. Step 6: Final answer
    x = 62,508.39

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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.