Home / 55,569.39-83,362.74-18,120.78

Finding the Fourth Proportional to 55,569.39, 83,362.74 and 18,120.78

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Solution

The fourth proportional to 55,569.39, 83,362.74 and 18,120.78 is: 27,183.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,569.39 : 83,362.74 = 18,120.78 : x
  2. Step 2: Convert to fraction form
    55,569.39/83,362.74 = 18,120.78/x
  3. Step 3: Cross multiply
    55,569.39x = 83,362.74 × 18,120.78
  4. Step 4: Simplify right side
    55,569.39x = 1,510,597,871.74
  5. Step 5: Solve for x
    x = 1,510,597,871.74/55,569.39
  6. Step 6: Final answer
    x = 27,183.99

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1.5x scale

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.