Home / 55,780.20-83,427.30-49,899.60

Finding the Fourth Proportional to 55,780.20, 83,427.30 and 49,899.60

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Solution

The fourth proportional to 55,780.20, 83,427.30 and 49,899.60 is: 74,632.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.20 : 83,427.30 = 49,899.60 : x
  2. Step 2: Convert to fraction form
    55,780.20/83,427.30 = 49,899.60/x
  3. Step 3: Cross multiply
    55,780.20x = 83,427.30 × 49,899.60
  4. Step 4: Simplify right side
    55,780.20x = 4,162,988,899.08
  5. Step 5: Solve for x
    x = 4,162,988,899.08/55,780.20
  6. Step 6: Final answer
    x = 74,632.02

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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.