Home / 53,147.70-79,730.15-15,711.53

Finding the Fourth Proportional to 53,147.70, 79,730.15 and 15,711.53

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Solution

The fourth proportional to 53,147.70, 79,730.15 and 15,711.53 is: 23,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,147.70 : 79,730.15 = 15,711.53 : x
  2. Step 2: Convert to fraction form
    53,147.70/79,730.15 = 15,711.53/x
  3. Step 3: Cross multiply
    53,147.70x = 79,730.15 × 15,711.53
  4. Step 4: Simplify right side
    53,147.70x = 1,252,682,166.42
  5. Step 5: Solve for x
    x = 1,252,682,166.42/53,147.70
  6. Step 6: Final answer
    x = 23,569.83

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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.