Home / 55,424.80-76,486.68-31,553.02

Finding the Fourth Proportional to 55,424.80, 76,486.68 and 31,553.02

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Solution

The fourth proportional to 55,424.80, 76,486.68 and 31,553.02 is: 43,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,424.80 : 76,486.68 = 31,553.02 : x
  2. Step 2: Convert to fraction form
    55,424.80/76,486.68 = 31,553.02/x
  3. Step 3: Cross multiply
    55,424.80x = 76,486.68 × 31,553.02
  4. Step 4: Simplify right side
    55,424.80x = 2,413,385,743.77
  5. Step 5: Solve for x
    x = 2,413,385,743.77/55,424.80
  6. Step 6: Final answer
    x = 43,543.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.