Home / 37,487.52-51,688.92-31,121.52

Finding the Fourth Proportional to 37,487.52, 51,688.92 and 31,121.52

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Solution

The fourth proportional to 37,487.52, 51,688.92 and 31,121.52 is: 42,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,487.52 : 51,688.92 = 31,121.52 : x
  2. Step 2: Convert to fraction form
    37,487.52/51,688.92 = 31,121.52/x
  3. Step 3: Cross multiply
    37,487.52x = 51,688.92 × 31,121.52
  4. Step 4: Simplify right side
    37,487.52x = 1,608,637,757.56
  5. Step 5: Solve for x
    x = 1,608,637,757.56/37,487.52
  6. Step 6: Final answer
    x = 42,911.29

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1.5x scale

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.