Home / 55,140.60-82,672.59-30,192.39

Finding the Fourth Proportional to 55,140.60, 82,672.59 and 30,192.39

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Solution

The fourth proportional to 55,140.60, 82,672.59 and 30,192.39 is: 45,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,140.60 : 82,672.59 = 30,192.39 : x
  2. Step 2: Convert to fraction form
    55,140.60/82,672.59 = 30,192.39/x
  3. Step 3: Cross multiply
    55,140.60x = 82,672.59 × 30,192.39
  4. Step 4: Simplify right side
    55,140.60x = 2,496,083,079.59
  5. Step 5: Solve for x
    x = 2,496,083,079.59/55,140.60
  6. Step 6: Final answer
    x = 45,267.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.