Home / 55,016.79-75,924.99-31,142.97

Finding the Fourth Proportional to 55,016.79, 75,924.99 and 31,142.97

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Solution

The fourth proportional to 55,016.79, 75,924.99 and 31,142.97 is: 42,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,016.79 : 75,924.99 = 31,142.97 : x
  2. Step 2: Convert to fraction form
    55,016.79/75,924.99 = 31,142.97/x
  3. Step 3: Cross multiply
    55,016.79x = 75,924.99 × 31,142.97
  4. Step 4: Simplify right side
    55,016.79x = 2,364,529,685.82
  5. Step 5: Solve for x
    x = 2,364,529,685.82/55,016.79
  6. Step 6: Final answer
    x = 42,978.33

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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.