Home / 54,345.16-74,998.20-30,472.12

Finding the Fourth Proportional to 54,345.16, 74,998.20 and 30,472.12

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Solution

The fourth proportional to 54,345.16, 74,998.20 and 30,472.12 is: 42,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.16 : 74,998.20 = 30,472.12 : x
  2. Step 2: Convert to fraction form
    54,345.16/74,998.20 = 30,472.12/x
  3. Step 3: Cross multiply
    54,345.16x = 74,998.20 × 30,472.12
  4. Step 4: Simplify right side
    54,345.16x = 2,285,354,150.18
  5. Step 5: Solve for x
    x = 2,285,354,150.18/54,345.16
  6. Step 6: Final answer
    x = 42,052.58

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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.