Home / 55,064.70-76,003.11-31,205.61

Finding the Fourth Proportional to 55,064.70, 76,003.11 and 31,205.61

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Solution

The fourth proportional to 55,064.70, 76,003.11 and 31,205.61 is: 43,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,064.70 : 76,003.11 = 31,205.61 : x
  2. Step 2: Convert to fraction form
    55,064.70/76,003.11 = 31,205.61/x
  3. Step 3: Cross multiply
    55,064.70x = 76,003.11 × 31,205.61
  4. Step 4: Simplify right side
    55,064.70x = 2,371,723,409.45
  5. Step 5: Solve for x
    x = 2,371,723,409.45/55,064.70
  6. Step 6: Final answer
    x = 43,071.58

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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.