Home / 54,911.43-75,780.90-31,040.19

Finding the Fourth Proportional to 54,911.43, 75,780.90 and 31,040.19

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Solution

The fourth proportional to 54,911.43, 75,780.90 and 31,040.19 is: 42,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,911.43 : 75,780.90 = 31,040.19 : x
  2. Step 2: Convert to fraction form
    54,911.43/75,780.90 = 31,040.19/x
  3. Step 3: Cross multiply
    54,911.43x = 75,780.90 × 31,040.19
  4. Step 4: Simplify right side
    54,911.43x = 2,352,253,534.37
  5. Step 5: Solve for x
    x = 2,352,253,534.37/54,911.43
  6. Step 6: Final answer
    x = 42,837.23

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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.