Home / 87,913.84-131,868.96-21,354.32

Finding the Fourth Proportional to 87,913.84, 131,868.96 and 21,354.32

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Solution

The fourth proportional to 87,913.84, 131,868.96 and 21,354.32 is: 32,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,913.84 : 131,868.96 = 21,354.32 : x
  2. Step 2: Convert to fraction form
    87,913.84/131,868.96 = 21,354.32/x
  3. Step 3: Cross multiply
    87,913.84x = 131,868.96 × 21,354.32
  4. Step 4: Simplify right side
    87,913.84x = 2,815,971,969.91
  5. Step 5: Solve for x
    x = 2,815,971,969.91/87,913.84
  6. Step 6: Final answer
    x = 32,031.04

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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.