Home / 56,074.75-77,382.14-30,581.28

Finding the Fourth Proportional to 56,074.75, 77,382.14 and 30,581.28

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Solution

The fourth proportional to 56,074.75, 77,382.14 and 30,581.28 is: 42,201.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,074.75 : 77,382.14 = 30,581.28 : x
  2. Step 2: Convert to fraction form
    56,074.75/77,382.14 = 30,581.28/x
  3. Step 3: Cross multiply
    56,074.75x = 77,382.14 × 30,581.28
  4. Step 4: Simplify right side
    56,074.75x = 2,366,444,737.43
  5. Step 5: Solve for x
    x = 2,366,444,737.43/56,074.75
  6. Step 6: Final answer
    x = 42,201.61

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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.