Home / 55,554.27-76,662.92-31,688.61

Finding the Fourth Proportional to 55,554.27, 76,662.92 and 31,688.61

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Solution

The fourth proportional to 55,554.27, 76,662.92 and 31,688.61 is: 43,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,554.27 : 76,662.92 = 31,688.61 : x
  2. Step 2: Convert to fraction form
    55,554.27/76,662.92 = 31,688.61/x
  3. Step 3: Cross multiply
    55,554.27x = 76,662.92 × 31,688.61
  4. Step 4: Simplify right side
    55,554.27x = 2,429,341,214.90
  5. Step 5: Solve for x
    x = 2,429,341,214.90/55,554.27
  6. Step 6: Final answer
    x = 43,729.15

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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.