Home / 65,579.31-98,369.01-28,115.19

Finding the Fourth Proportional to 65,579.31, 98,369.01 and 28,115.19

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Solution

The fourth proportional to 65,579.31, 98,369.01 and 28,115.19 is: 42,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,579.31 : 98,369.01 = 28,115.19 : x
  2. Step 2: Convert to fraction form
    65,579.31/98,369.01 = 28,115.19/x
  3. Step 3: Cross multiply
    65,579.31x = 98,369.01 × 28,115.19
  4. Step 4: Simplify right side
    65,579.31x = 2,765,663,406.26
  5. Step 5: Solve for x
    x = 2,765,663,406.26/65,579.31
  6. Step 6: Final answer
    x = 42,172.80

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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.