Home / 49,778.20-74,667.30-31,346.20

Finding the Fourth Proportional to 49,778.20, 74,667.30 and 31,346.20

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Solution

The fourth proportional to 49,778.20, 74,667.30 and 31,346.20 is: 47,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,778.20 : 74,667.30 = 31,346.20 : x
  2. Step 2: Convert to fraction form
    49,778.20/74,667.30 = 31,346.20/x
  3. Step 3: Cross multiply
    49,778.20x = 74,667.30 × 31,346.20
  4. Step 4: Simplify right side
    49,778.20x = 2,340,536,119.26
  5. Step 5: Solve for x
    x = 2,340,536,119.26/49,778.20
  6. Step 6: Final answer
    x = 47,019.30

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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.