Home / 51,490.91-77,143.12-43,224.05

Finding the Fourth Proportional to 51,490.91, 77,143.12 and 43,224.05

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Solution

The fourth proportional to 51,490.91, 77,143.12 and 43,224.05 is: 64,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,490.91 : 77,143.12 = 43,224.05 : x
  2. Step 2: Convert to fraction form
    51,490.91/77,143.12 = 43,224.05/x
  3. Step 3: Cross multiply
    51,490.91x = 77,143.12 × 43,224.05
  4. Step 4: Simplify right side
    51,490.91x = 3,334,438,160.83
  5. Step 5: Solve for x
    x = 3,334,438,160.83/51,490.91
  6. Step 6: Final answer
    x = 64,757.80

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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.