Home / 56,458.44-77,908.41-30,960.72

Finding the Fourth Proportional to 56,458.44, 77,908.41 and 30,960.72

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Solution

The fourth proportional to 56,458.44, 77,908.41 and 30,960.72 is: 42,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,458.44 : 77,908.41 = 30,960.72 : x
  2. Step 2: Convert to fraction form
    56,458.44/77,908.41 = 30,960.72/x
  3. Step 3: Cross multiply
    56,458.44x = 77,908.41 × 30,960.72
  4. Step 4: Simplify right side
    56,458.44x = 2,412,100,467.66
  5. Step 5: Solve for x
    x = 2,412,100,467.66/56,458.44
  6. Step 6: Final answer
    x = 42,723.47

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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.