Home / 80,830.08-121,261.92-34,083.36

Finding the Fourth Proportional to 80,830.08, 121,261.92 and 34,083.36

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Solution

The fourth proportional to 80,830.08, 121,261.92 and 34,083.36 is: 51,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,830.08 : 121,261.92 = 34,083.36 : x
  2. Step 2: Convert to fraction form
    80,830.08/121,261.92 = 34,083.36/x
  3. Step 3: Cross multiply
    80,830.08x = 121,261.92 × 34,083.36
  4. Step 4: Simplify right side
    80,830.08x = 4,133,013,673.65
  5. Step 5: Solve for x
    x = 4,133,013,673.65/80,830.08
  6. Step 6: Final answer
    x = 51,132.12

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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.