Home / 282,079.08-423,120.24-71,717.22

Finding the Fourth Proportional to 282,079.08, 423,120.24 and 71,717.22

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Solution

The fourth proportional to 282,079.08, 423,120.24 and 71,717.22 is: 107,576.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,079.08 : 423,120.24 = 71,717.22 : x
  2. Step 2: Convert to fraction form
    282,079.08/423,120.24 = 71,717.22/x
  3. Step 3: Cross multiply
    282,079.08x = 423,120.24 × 71,717.22
  4. Step 4: Simplify right side
    282,079.08x = 30,345,007,338.53
  5. Step 5: Solve for x
    x = 30,345,007,338.53/282,079.08
  6. Step 6: Final answer
    x = 107,576.24

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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.