Home / 87,624.45-120,921.71-47,338.25

Finding the Fourth Proportional to 87,624.45, 120,921.71 and 47,338.25

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Solution

The fourth proportional to 87,624.45, 120,921.71 and 47,338.25 is: 65,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,624.45 : 120,921.71 = 47,338.25 : x
  2. Step 2: Convert to fraction form
    87,624.45/120,921.71 = 47,338.25/x
  3. Step 3: Cross multiply
    87,624.45x = 120,921.71 × 47,338.25
  4. Step 4: Simplify right side
    87,624.45x = 5,724,221,297.11
  5. Step 5: Solve for x
    x = 5,724,221,297.11/87,624.45
  6. Step 6: Final answer
    x = 65,326.76

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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.