Home / 52,678.64-72,690.56-31,169.04

Finding the Fourth Proportional to 52,678.64, 72,690.56 and 31,169.04

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Solution

The fourth proportional to 52,678.64, 72,690.56 and 31,169.04 is: 43,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,678.64 : 72,690.56 = 31,169.04 : x
  2. Step 2: Convert to fraction form
    52,678.64/72,690.56 = 31,169.04/x
  3. Step 3: Cross multiply
    52,678.64x = 72,690.56 × 31,169.04
  4. Step 4: Simplify right side
    52,678.64x = 2,265,694,972.26
  5. Step 5: Solve for x
    x = 2,265,694,972.26/52,678.64
  6. Step 6: Final answer
    x = 43,009.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.