Home / 87,867.63-131,800.17-21,308.31

Finding the Fourth Proportional to 87,867.63, 131,800.17 and 21,308.31

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Solution

The fourth proportional to 87,867.63, 131,800.17 and 21,308.31 is: 31,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867.63 : 131,800.17 = 21,308.31 : x
  2. Step 2: Convert to fraction form
    87,867.63/131,800.17 = 21,308.31/x
  3. Step 3: Cross multiply
    87,867.63x = 131,800.17 × 21,308.31
  4. Step 4: Simplify right side
    87,867.63x = 2,808,438,880.41
  5. Step 5: Solve for x
    x = 2,808,438,880.41/87,867.63
  6. Step 6: Final answer
    x = 31,962.16

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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.