Home / 52,678.68-72,690.62-31,169.09

Finding the Fourth Proportional to 52,678.68, 72,690.62 and 31,169.09

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Solution

The fourth proportional to 52,678.68, 72,690.62 and 31,169.09 is: 43,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,678.68 : 72,690.62 = 31,169.09 : x
  2. Step 2: Convert to fraction form
    52,678.68/72,690.62 = 31,169.09/x
  3. Step 3: Cross multiply
    52,678.68x = 72,690.62 × 31,169.09
  4. Step 4: Simplify right side
    52,678.68x = 2,265,699,957.64
  5. Step 5: Solve for x
    x = 2,265,699,957.64/52,678.68
  6. Step 6: Final answer
    x = 43,009.81

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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.