Home / 54,931.51-75,805.05-31,062.88

Finding the Fourth Proportional to 54,931.51, 75,805.05 and 31,062.88

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Solution

The fourth proportional to 54,931.51, 75,805.05 and 31,062.88 is: 42,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,931.51 : 75,805.05 = 31,062.88 : x
  2. Step 2: Convert to fraction form
    54,931.51/75,805.05 = 31,062.88/x
  3. Step 3: Cross multiply
    54,931.51x = 75,805.05 × 31,062.88
  4. Step 4: Simplify right side
    54,931.51x = 2,354,723,171.54
  5. Step 5: Solve for x
    x = 2,354,723,171.54/54,931.51
  6. Step 6: Final answer
    x = 42,866.53

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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.