Home / 53,859.36-80,663.64-51,990.96

Finding the Fourth Proportional to 53,859.36, 80,663.64 and 51,990.96

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Solution

The fourth proportional to 53,859.36, 80,663.64 and 51,990.96 is: 77,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,859.36 : 80,663.64 = 51,990.96 : x
  2. Step 2: Convert to fraction form
    53,859.36/80,663.64 = 51,990.96/x
  3. Step 3: Cross multiply
    53,859.36x = 80,663.64 × 51,990.96
  4. Step 4: Simplify right side
    53,859.36x = 4,193,780,080.69
  5. Step 5: Solve for x
    x = 4,193,780,080.69/53,859.36
  6. Step 6: Final answer
    x = 77,865.39

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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.