Home / 51,372.15-70,893.30-28,711.11

Finding the Fourth Proportional to 51,372.15, 70,893.30 and 28,711.11

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Solution

The fourth proportional to 51,372.15, 70,893.30 and 28,711.11 is: 39,621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,372.15 : 70,893.30 = 28,711.11 : x
  2. Step 2: Convert to fraction form
    51,372.15/70,893.30 = 28,711.11/x
  3. Step 3: Cross multiply
    51,372.15x = 70,893.30 × 28,711.11
  4. Step 4: Simplify right side
    51,372.15x = 2,035,425,334.56
  5. Step 5: Solve for x
    x = 2,035,425,334.56/51,372.15
  6. Step 6: Final answer
    x = 39,621.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.