Home / 87,883.42-131,823.95-21,324.10

Finding the Fourth Proportional to 87,883.42, 131,823.95 and 21,324.10

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Solution

The fourth proportional to 87,883.42, 131,823.95 and 21,324.10 is: 31,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.42 : 131,823.95 = 21,324.10 : x
  2. Step 2: Convert to fraction form
    87,883.42/131,823.95 = 21,324.10/x
  3. Step 3: Cross multiply
    87,883.42x = 131,823.95 × 21,324.10
  4. Step 4: Simplify right side
    87,883.42x = 2,811,026,326.45
  5. Step 5: Solve for x
    x = 2,811,026,326.45/87,883.42
  6. Step 6: Final answer
    x = 31,985.86

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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.