Home / 54,342.48-74,990.85-30,143.34

Finding the Fourth Proportional to 54,342.48, 74,990.85 and 30,143.34

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Solution

The fourth proportional to 54,342.48, 74,990.85 and 30,143.34 is: 41,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,342.48 : 74,990.85 = 30,143.34 : x
  2. Step 2: Convert to fraction form
    54,342.48/74,990.85 = 30,143.34/x
  3. Step 3: Cross multiply
    54,342.48x = 74,990.85 × 30,143.34
  4. Step 4: Simplify right side
    54,342.48x = 2,260,474,688.44
  5. Step 5: Solve for x
    x = 2,260,474,688.44/54,342.48
  6. Step 6: Final answer
    x = 41,596.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.