Home / 55,563.71-76,677.14-31,690.78

Finding the Fourth Proportional to 55,563.71, 76,677.14 and 31,690.78

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Solution

The fourth proportional to 55,563.71, 76,677.14 and 31,690.78 is: 43,732.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,563.71 : 76,677.14 = 31,690.78 : x
  2. Step 2: Convert to fraction form
    55,563.71/76,677.14 = 31,690.78/x
  3. Step 3: Cross multiply
    55,563.71x = 76,677.14 × 31,690.78
  4. Step 4: Simplify right side
    55,563.71x = 2,429,958,374.77
  5. Step 5: Solve for x
    x = 2,429,958,374.77/55,563.71
  6. Step 6: Final answer
    x = 43,732.83

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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.