Home / 55,562.24-76,680.64-31,689.92

Finding the Fourth Proportional to 55,562.24, 76,680.64 and 31,689.92

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Solution

The fourth proportional to 55,562.24, 76,680.64 and 31,689.92 is: 43,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,562.24 : 76,680.64 = 31,689.92 : x
  2. Step 2: Convert to fraction form
    55,562.24/76,680.64 = 31,689.92/x
  3. Step 3: Cross multiply
    55,562.24x = 76,680.64 × 31,689.92
  4. Step 4: Simplify right side
    55,562.24x = 2,430,003,347.15
  5. Step 5: Solve for x
    x = 2,430,003,347.15/55,562.24
  6. Step 6: Final answer
    x = 43,734.80

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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.