Home / 51,580.45-77,377.02-19,991.04

Finding the Fourth Proportional to 51,580.45, 77,377.02 and 19,991.04

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Solution

The fourth proportional to 51,580.45, 77,377.02 and 19,991.04 is: 29,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,580.45 : 77,377.02 = 19,991.04 : x
  2. Step 2: Convert to fraction form
    51,580.45/77,377.02 = 19,991.04/x
  3. Step 3: Cross multiply
    51,580.45x = 77,377.02 × 19,991.04
  4. Step 4: Simplify right side
    51,580.45x = 1,546,847,101.90
  5. Step 5: Solve for x
    x = 1,546,847,101.90/51,580.45
  6. Step 6: Final answer
    x = 29,989.02

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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.