Home / 55,230-76,217.40-30,081.12

Finding the Fourth Proportional to 55,230, 76,217.40 and 30,081.12

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Solution

The fourth proportional to 55,230, 76,217.40 and 30,081.12 is: 41,511.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230 : 76,217.40 = 30,081.12 : x
  2. Step 2: Convert to fraction form
    55,230/76,217.40 = 30,081.12/x
  3. Step 3: Cross multiply
    55,230x = 76,217.40 × 30,081.12
  4. Step 4: Simplify right side
    55,230x = 2,292,704,755.49
  5. Step 5: Solve for x
    x = 2,292,704,755.49/55,230
  6. Step 6: Final answer
    x = 41,511.95

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1.5x scale

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.