Home / 56,122.64-77,448.11-30,629.51

Finding the Fourth Proportional to 56,122.64, 77,448.11 and 30,629.51

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Solution

The fourth proportional to 56,122.64, 77,448.11 and 30,629.51 is: 42,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.64 : 77,448.11 = 30,629.51 : x
  2. Step 2: Convert to fraction form
    56,122.64/77,448.11 = 30,629.51/x
  3. Step 3: Cross multiply
    56,122.64x = 77,448.11 × 30,629.51
  4. Step 4: Simplify right side
    56,122.64x = 2,372,197,659.73
  5. Step 5: Solve for x
    x = 2,372,197,659.73/56,122.64
  6. Step 6: Final answer
    x = 42,268.11

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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.