Home / 55,291.11-76,303.89-30,140.61

Finding the Fourth Proportional to 55,291.11, 76,303.89 and 30,140.61

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Solution

The fourth proportional to 55,291.11, 76,303.89 and 30,140.61 is: 41,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,291.11 : 76,303.89 = 30,140.61 : x
  2. Step 2: Convert to fraction form
    55,291.11/76,303.89 = 30,140.61/x
  3. Step 3: Cross multiply
    55,291.11x = 76,303.89 × 30,140.61
  4. Step 4: Simplify right side
    55,291.11x = 2,299,845,789.97
  5. Step 5: Solve for x
    x = 2,299,845,789.97/55,291.11
  6. Step 6: Final answer
    x = 41,595.22

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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.