Home / 40,684.27-61,065.81-19,639.09

Finding the Fourth Proportional to 40,684.27, 61,065.81 and 19,639.09

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Solution

The fourth proportional to 40,684.27, 61,065.81 and 19,639.09 is: 29,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,684.27 : 61,065.81 = 19,639.09 : x
  2. Step 2: Convert to fraction form
    40,684.27/61,065.81 = 19,639.09/x
  3. Step 3: Cross multiply
    40,684.27x = 61,065.81 × 19,639.09
  4. Step 4: Simplify right side
    40,684.27x = 1,199,276,534.99
  5. Step 5: Solve for x
    x = 1,199,276,534.99/40,684.27
  6. Step 6: Final answer
    x = 29,477.65

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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.