Home / 81,628.74-112,641.48-45,811.85

Finding the Fourth Proportional to 81,628.74, 112,641.48 and 45,811.85

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Solution

The fourth proportional to 81,628.74, 112,641.48 and 45,811.85 is: 63,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,628.74 : 112,641.48 = 45,811.85 : x
  2. Step 2: Convert to fraction form
    81,628.74/112,641.48 = 45,811.85/x
  3. Step 3: Cross multiply
    81,628.74x = 112,641.48 × 45,811.85
  4. Step 4: Simplify right side
    81,628.74x = 5,160,314,022.33
  5. Step 5: Solve for x
    x = 5,160,314,022.33/81,628.74
  6. Step 6: Final answer
    x = 63,216.88

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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.