Home / 56,375.28-77,620.86-47,859.75

Finding the Fourth Proportional to 56,375.28, 77,620.86 and 47,859.75

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Solution

The fourth proportional to 56,375.28, 77,620.86 and 47,859.75 is: 65,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,375.28 : 77,620.86 = 47,859.75 : x
  2. Step 2: Convert to fraction form
    56,375.28/77,620.86 = 47,859.75/x
  3. Step 3: Cross multiply
    56,375.28x = 77,620.86 × 47,859.75
  4. Step 4: Simplify right side
    56,375.28x = 3,714,914,954.39
  5. Step 5: Solve for x
    x = 3,714,914,954.39/56,375.28
  6. Step 6: Final answer
    x = 65,896.17

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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.