Home / 54,429.13-75,111.54-30,555.19

Finding the Fourth Proportional to 54,429.13, 75,111.54 and 30,555.19

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Solution

The fourth proportional to 54,429.13, 75,111.54 and 30,555.19 is: 42,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,429.13 : 75,111.54 = 30,555.19 : x
  2. Step 2: Convert to fraction form
    54,429.13/75,111.54 = 30,555.19/x
  3. Step 3: Cross multiply
    54,429.13x = 75,111.54 × 30,555.19
  4. Step 4: Simplify right side
    54,429.13x = 2,295,047,375.89
  5. Step 5: Solve for x
    x = 2,295,047,375.89/54,429.13
  6. Step 6: Final answer
    x = 42,165.79

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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.