Home / 312,721.92-469,083-76,063.14

Finding the Fourth Proportional to 312,721.92, 469,083 and 76,063.14

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Solution

The fourth proportional to 312,721.92, 469,083 and 76,063.14 is: 114,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,721.92 : 469,083 = 76,063.14 : x
  2. Step 2: Convert to fraction form
    312,721.92/469,083 = 76,063.14/x
  3. Step 3: Cross multiply
    312,721.92x = 469,083 × 76,063.14
  4. Step 4: Simplify right side
    312,721.92x = 35,679,925,900.62
  5. Step 5: Solve for x
    x = 35,679,925,900.62/312,721.92
  6. Step 6: Final answer
    x = 114,094.74

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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.