Home / 57,702.30-86,562.45-18,255.66

Finding the Fourth Proportional to 57,702.30, 86,562.45 and 18,255.66

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Solution

The fourth proportional to 57,702.30, 86,562.45 and 18,255.66 is: 27,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,702.30 : 86,562.45 = 18,255.66 : x
  2. Step 2: Convert to fraction form
    57,702.30/86,562.45 = 18,255.66/x
  3. Step 3: Cross multiply
    57,702.30x = 86,562.45 × 18,255.66
  4. Step 4: Simplify right side
    57,702.30x = 1,580,254,655.97
  5. Step 5: Solve for x
    x = 1,580,254,655.97/57,702.30
  6. Step 6: Final answer
    x = 27,386.34

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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.