Home / 72,858.96-109,309.32-26,115.12

Finding the Fourth Proportional to 72,858.96, 109,309.32 and 26,115.12

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Solution

The fourth proportional to 72,858.96, 109,309.32 and 26,115.12 is: 39,180.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,858.96 : 109,309.32 = 26,115.12 : x
  2. Step 2: Convert to fraction form
    72,858.96/109,309.32 = 26,115.12/x
  3. Step 3: Cross multiply
    72,858.96x = 109,309.32 × 26,115.12
  4. Step 4: Simplify right side
    72,858.96x = 2,854,626,008.92
  5. Step 5: Solve for x
    x = 2,854,626,008.92/72,858.96
  6. Step 6: Final answer
    x = 39,180.16

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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.