Home / 55,017.79-75,926.37-31,143.97

Finding the Fourth Proportional to 55,017.79, 75,926.37 and 31,143.97

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Solution

The fourth proportional to 55,017.79, 75,926.37 and 31,143.97 is: 42,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,017.79 : 75,926.37 = 31,143.97 : x
  2. Step 2: Convert to fraction form
    55,017.79/75,926.37 = 31,143.97/x
  3. Step 3: Cross multiply
    55,017.79x = 75,926.37 × 31,143.97
  4. Step 4: Simplify right side
    55,017.79x = 2,364,648,589.49
  5. Step 5: Solve for x
    x = 2,364,648,589.49/55,017.79
  6. Step 6: Final answer
    x = 42,979.71

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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.