Home / 87,195.93-130,806.20-28,011.76

Finding the Fourth Proportional to 87,195.93, 130,806.20 and 28,011.76

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Solution

The fourth proportional to 87,195.93, 130,806.20 and 28,011.76 is: 42,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,195.93 : 130,806.20 = 28,011.76 : x
  2. Step 2: Convert to fraction form
    87,195.93/130,806.20 = 28,011.76/x
  3. Step 3: Cross multiply
    87,195.93x = 130,806.20 × 28,011.76
  4. Step 4: Simplify right side
    87,195.93x = 3,664,111,880.91
  5. Step 5: Solve for x
    x = 3,664,111,880.91/87,195.93
  6. Step 6: Final answer
    x = 42,021.59

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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.