Home / 57,377.33-86,030.75-19,921.31

Finding the Fourth Proportional to 57,377.33, 86,030.75 and 19,921.31

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Solution

The fourth proportional to 57,377.33, 86,030.75 and 19,921.31 is: 29,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,377.33 : 86,030.75 = 19,921.31 : x
  2. Step 2: Convert to fraction form
    57,377.33/86,030.75 = 19,921.31/x
  3. Step 3: Cross multiply
    57,377.33x = 86,030.75 × 19,921.31
  4. Step 4: Simplify right side
    57,377.33x = 1,713,844,810.13
  5. Step 5: Solve for x
    x = 1,713,844,810.13/57,377.33
  6. Step 6: Final answer
    x = 29,869.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.