Home / 312,725.32-469,088.36-76,066.36

Finding the Fourth Proportional to 312,725.32, 469,088.36 and 76,066.36

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Solution

The fourth proportional to 312,725.32, 469,088.36 and 76,066.36 is: 114,099.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,725.32 : 469,088.36 = 76,066.36 : x
  2. Step 2: Convert to fraction form
    312,725.32/469,088.36 = 76,066.36/x
  3. Step 3: Cross multiply
    312,725.32x = 469,088.36 × 76,066.36
  4. Step 4: Simplify right side
    312,725.32x = 35,681,844,063.57
  5. Step 5: Solve for x
    x = 35,681,844,063.57/312,725.32
  6. Step 6: Final answer
    x = 114,099.63

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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.