Home / 72,917.60-109,376.40-26,175.20

Finding the Fourth Proportional to 72,917.60, 109,376.40 and 26,175.20

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Solution

The fourth proportional to 72,917.60, 109,376.40 and 26,175.20 is: 39,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,917.60 : 109,376.40 = 26,175.20 : x
  2. Step 2: Convert to fraction form
    72,917.60/109,376.40 = 26,175.20/x
  3. Step 3: Cross multiply
    72,917.60x = 109,376.40 × 26,175.20
  4. Step 4: Simplify right side
    72,917.60x = 2,862,949,145.28
  5. Step 5: Solve for x
    x = 2,862,949,145.28/72,917.60
  6. Step 6: Final answer
    x = 39,262.80

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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.