Home / 65,875.38-98,815.82-19,128.26

Finding the Fourth Proportional to 65,875.38, 98,815.82 and 19,128.26

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Solution

The fourth proportional to 65,875.38, 98,815.82 and 19,128.26 is: 28,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,875.38 : 98,815.82 = 19,128.26 : x
  2. Step 2: Convert to fraction form
    65,875.38/98,815.82 = 19,128.26/x
  3. Step 3: Cross multiply
    65,875.38x = 98,815.82 × 19,128.26
  4. Step 4: Simplify right side
    65,875.38x = 1,890,174,107.35
  5. Step 5: Solve for x
    x = 1,890,174,107.35/65,875.38
  6. Step 6: Final answer
    x = 28,693.18

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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.