Home / 51,876.48-77,816.22-20,285.26

Finding the Fourth Proportional to 51,876.48, 77,816.22 and 20,285.26

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Solution

The fourth proportional to 51,876.48, 77,816.22 and 20,285.26 is: 30,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,876.48 : 77,816.22 = 20,285.26 : x
  2. Step 2: Convert to fraction form
    51,876.48/77,816.22 = 20,285.26/x
  3. Step 3: Cross multiply
    51,876.48x = 77,816.22 × 20,285.26
  4. Step 4: Simplify right side
    51,876.48x = 1,578,522,254.92
  5. Step 5: Solve for x
    x = 1,578,522,254.92/51,876.48
  6. Step 6: Final answer
    x = 30,428.48

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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.