Home / 56,453.75-77,906.28-30,960.29

Finding the Fourth Proportional to 56,453.75, 77,906.28 and 30,960.29

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Solution

The fourth proportional to 56,453.75, 77,906.28 and 30,960.29 is: 42,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,453.75 : 77,906.28 = 30,960.29 : x
  2. Step 2: Convert to fraction form
    56,453.75/77,906.28 = 30,960.29/x
  3. Step 3: Cross multiply
    56,453.75x = 77,906.28 × 30,960.29
  4. Step 4: Simplify right side
    56,453.75x = 2,412,001,021.62
  5. Step 5: Solve for x
    x = 2,412,001,021.62/56,453.75
  6. Step 6: Final answer
    x = 42,725.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.