Home / 87,837.63-131,756.51-21,277.84

Finding the Fourth Proportional to 87,837.63, 131,756.51 and 21,277.84

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Solution

The fourth proportional to 87,837.63, 131,756.51 and 21,277.84 is: 31,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.63 : 131,756.51 = 21,277.84 : x
  2. Step 2: Convert to fraction form
    87,837.63/131,756.51 = 21,277.84/x
  3. Step 3: Cross multiply
    87,837.63x = 131,756.51 × 21,277.84
  4. Step 4: Simplify right side
    87,837.63x = 2,803,493,938.74
  5. Step 5: Solve for x
    x = 2,803,493,938.74/87,837.63
  6. Step 6: Final answer
    x = 31,916.78

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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.