Home / 40,800.11-61,081.29-30,316.61

Finding the Fourth Proportional to 40,800.11, 61,081.29 and 30,316.61

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Solution

The fourth proportional to 40,800.11, 61,081.29 and 30,316.61 is: 45,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,800.11 : 61,081.29 = 30,316.61 : x
  2. Step 2: Convert to fraction form
    40,800.11/61,081.29 = 30,316.61/x
  3. Step 3: Cross multiply
    40,800.11x = 61,081.29 × 30,316.61
  4. Step 4: Simplify right side
    40,800.11x = 1,851,777,799.93
  5. Step 5: Solve for x
    x = 1,851,777,799.93/40,800.11
  6. Step 6: Final answer
    x = 45,386.59

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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.