Home / 56,122.79-77,449.89-30,629.36

Finding the Fourth Proportional to 56,122.79, 77,449.89 and 30,629.36

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Solution

The fourth proportional to 56,122.79, 77,449.89 and 30,629.36 is: 42,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.79 : 77,449.89 = 30,629.36 : x
  2. Step 2: Convert to fraction form
    56,122.79/77,449.89 = 30,629.36/x
  3. Step 3: Cross multiply
    56,122.79x = 77,449.89 × 30,629.36
  4. Step 4: Simplify right side
    56,122.79x = 2,372,240,175.52
  5. Step 5: Solve for x
    x = 2,372,240,175.52/56,122.79
  6. Step 6: Final answer
    x = 42,268.75

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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.