Home / 87,941.58-131,911.20-21,381.51

Finding the Fourth Proportional to 87,941.58, 131,911.20 and 21,381.51

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Solution

The fourth proportional to 87,941.58, 131,911.20 and 21,381.51 is: 32,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,941.58 : 131,911.20 = 21,381.51 : x
  2. Step 2: Convert to fraction form
    87,941.58/131,911.20 = 21,381.51/x
  3. Step 3: Cross multiply
    87,941.58x = 131,911.20 × 21,381.51
  4. Step 4: Simplify right side
    87,941.58x = 2,820,460,641.91
  5. Step 5: Solve for x
    x = 2,820,460,641.91/87,941.58
  6. Step 6: Final answer
    x = 32,071.98

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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.