Home / 54,960.50-82,385.36-21,667.68

Finding the Fourth Proportional to 54,960.50, 82,385.36 and 21,667.68

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Solution

The fourth proportional to 54,960.50, 82,385.36 and 21,667.68 is: 32,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,960.50 : 82,385.36 = 21,667.68 : x
  2. Step 2: Convert to fraction form
    54,960.50/82,385.36 = 21,667.68/x
  3. Step 3: Cross multiply
    54,960.50x = 82,385.36 × 21,667.68
  4. Step 4: Simplify right side
    54,960.50x = 1,785,099,617.16
  5. Step 5: Solve for x
    x = 1,785,099,617.16/54,960.50
  6. Step 6: Final answer
    x = 32,479.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.