Home / 54,921.71-75,778.37-31,047.87

Finding the Fourth Proportional to 54,921.71, 75,778.37 and 31,047.87

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Solution

The fourth proportional to 54,921.71, 75,778.37 and 31,047.87 is: 42,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,921.71 : 75,778.37 = 31,047.87 : x
  2. Step 2: Convert to fraction form
    54,921.71/75,778.37 = 31,047.87/x
  3. Step 3: Cross multiply
    54,921.71x = 75,778.37 × 31,047.87
  4. Step 4: Simplify right side
    54,921.71x = 2,352,757,225.93
  5. Step 5: Solve for x
    x = 2,352,757,225.93/54,921.71
  6. Step 6: Final answer
    x = 42,838.38

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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.