Home / 54,638.04-75,406.14-33,431.40

Finding the Fourth Proportional to 54,638.04, 75,406.14 and 33,431.40

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Solution

The fourth proportional to 54,638.04, 75,406.14 and 33,431.40 is: 46,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,638.04 : 75,406.14 = 33,431.40 : x
  2. Step 2: Convert to fraction form
    54,638.04/75,406.14 = 33,431.40/x
  3. Step 3: Cross multiply
    54,638.04x = 75,406.14 × 33,431.40
  4. Step 4: Simplify right side
    54,638.04x = 2,520,932,828.80
  5. Step 5: Solve for x
    x = 2,520,932,828.80/54,638.04
  6. Step 6: Final answer
    x = 46,138.79

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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.