Home / 312,724.30-469,086.84-76,065.34

Finding the Fourth Proportional to 312,724.30, 469,086.84 and 76,065.34

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Solution

The fourth proportional to 312,724.30, 469,086.84 and 76,065.34 is: 114,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,724.30 : 469,086.84 = 76,065.34 : x
  2. Step 2: Convert to fraction form
    312,724.30/469,086.84 = 76,065.34/x
  3. Step 3: Cross multiply
    312,724.30x = 469,086.84 × 76,065.34
  4. Step 4: Simplify right side
    312,724.30x = 35,681,249,974.13
  5. Step 5: Solve for x
    x = 35,681,249,974.13/312,724.30
  6. Step 6: Final answer
    x = 114,098.10

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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.