Home / 57,310.59-85,971.72-19,862.07

Finding the Fourth Proportional to 57,310.59, 85,971.72 and 19,862.07

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Solution

The fourth proportional to 57,310.59, 85,971.72 and 19,862.07 is: 29,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,310.59 : 85,971.72 = 19,862.07 : x
  2. Step 2: Convert to fraction form
    57,310.59/85,971.72 = 19,862.07/x
  3. Step 3: Cross multiply
    57,310.59x = 85,971.72 × 19,862.07
  4. Step 4: Simplify right side
    57,310.59x = 1,707,576,320.66
  5. Step 5: Solve for x
    x = 1,707,576,320.66/57,310.59
  6. Step 6: Final answer
    x = 29,795.13

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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.