Home / 54,429.30-75,107.25-30,550.50

Finding the Fourth Proportional to 54,429.30, 75,107.25 and 30,550.50

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Solution

The fourth proportional to 54,429.30, 75,107.25 and 30,550.50 is: 42,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,429.30 : 75,107.25 = 30,550.50 : x
  2. Step 2: Convert to fraction form
    54,429.30/75,107.25 = 30,550.50/x
  3. Step 3: Cross multiply
    54,429.30x = 75,107.25 × 30,550.50
  4. Step 4: Simplify right side
    54,429.30x = 2,294,564,041.13
  5. Step 5: Solve for x
    x = 2,294,564,041.13/54,429.30
  6. Step 6: Final answer
    x = 42,156.78

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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.