Home / 49,612.80-74,318.40-30,835.20

Finding the Fourth Proportional to 49,612.80, 74,318.40 and 30,835.20

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Solution

The fourth proportional to 49,612.80, 74,318.40 and 30,835.20 is: 46,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,612.80 : 74,318.40 = 30,835.20 : x
  2. Step 2: Convert to fraction form
    49,612.80/74,318.40 = 30,835.20/x
  3. Step 3: Cross multiply
    49,612.80x = 74,318.40 × 30,835.20
  4. Step 4: Simplify right side
    49,612.80x = 2,291,622,727.68
  5. Step 5: Solve for x
    x = 2,291,622,727.68/49,612.80
  6. Step 6: Final answer
    x = 46,190.15

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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.