Home / 40,688.21-61,063.56-18,205.85

Finding the Fourth Proportional to 40,688.21, 61,063.56 and 18,205.85

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Solution

The fourth proportional to 40,688.21, 61,063.56 and 18,205.85 is: 27,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.21 : 61,063.56 = 18,205.85 : x
  2. Step 2: Convert to fraction form
    40,688.21/61,063.56 = 18,205.85/x
  3. Step 3: Cross multiply
    40,688.21x = 61,063.56 × 18,205.85
  4. Step 4: Simplify right side
    40,688.21x = 1,111,713,708.51
  5. Step 5: Solve for x
    x = 1,111,713,708.51/40,688.21
  6. Step 6: Final answer
    x = 27,322.75

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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.