Home / 45,665.90-68,388.13-31,586.41

Finding the Fourth Proportional to 45,665.90, 68,388.13 and 31,586.41

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Solution

The fourth proportional to 45,665.90, 68,388.13 and 31,586.41 is: 47,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,665.90 : 68,388.13 = 31,586.41 : x
  2. Step 2: Convert to fraction form
    45,665.90/68,388.13 = 31,586.41/x
  3. Step 3: Cross multiply
    45,665.90x = 68,388.13 × 31,586.41
  4. Step 4: Simplify right side
    45,665.90x = 2,160,135,013.44
  5. Step 5: Solve for x
    x = 2,160,135,013.44/45,665.90
  6. Step 6: Final answer
    x = 47,303.03

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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.