Home / 51,553.90-77,345.43-30,512.53

Finding the Fourth Proportional to 51,553.90, 77,345.43 and 30,512.53

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Solution

The fourth proportional to 51,553.90, 77,345.43 and 30,512.53 is: 45,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,553.90 : 77,345.43 = 30,512.53 : x
  2. Step 2: Convert to fraction form
    51,553.90/77,345.43 = 30,512.53/x
  3. Step 3: Cross multiply
    51,553.90x = 77,345.43 × 30,512.53
  4. Step 4: Simplify right side
    51,553.90x = 2,360,004,753.24
  5. Step 5: Solve for x
    x = 2,360,004,753.24/51,553.90
  6. Step 6: Final answer
    x = 45,777.42

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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.