Home / 56,074.86-77,383.38-30,581.28

Finding the Fourth Proportional to 56,074.86, 77,383.38 and 30,581.28

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Solution

The fourth proportional to 56,074.86, 77,383.38 and 30,581.28 is: 42,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,074.86 : 77,383.38 = 30,581.28 : x
  2. Step 2: Convert to fraction form
    56,074.86/77,383.38 = 30,581.28/x
  3. Step 3: Cross multiply
    56,074.86x = 77,383.38 × 30,581.28
  4. Step 4: Simplify right side
    56,074.86x = 2,366,482,811.13
  5. Step 5: Solve for x
    x = 2,366,482,811.13/56,074.86
  6. Step 6: Final answer
    x = 42,202.21

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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.