Home / 55,557.39-83,318.79-18,612.75

Finding the Fourth Proportional to 55,557.39, 83,318.79 and 18,612.75

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Solution

The fourth proportional to 55,557.39, 83,318.79 and 18,612.75 is: 27,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,557.39 : 83,318.79 = 18,612.75 : x
  2. Step 2: Convert to fraction form
    55,557.39/83,318.79 = 18,612.75/x
  3. Step 3: Cross multiply
    55,557.39x = 83,318.79 × 18,612.75
  4. Step 4: Simplify right side
    55,557.39x = 1,550,791,808.57
  5. Step 5: Solve for x
    x = 1,550,791,808.57/55,557.39
  6. Step 6: Final answer
    x = 27,913.33

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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.