Home / 54,429.51-75,112.06-30,555.57

Finding the Fourth Proportional to 54,429.51, 75,112.06 and 30,555.57

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Solution

The fourth proportional to 54,429.51, 75,112.06 and 30,555.57 is: 42,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,429.51 : 75,112.06 = 30,555.57 : x
  2. Step 2: Convert to fraction form
    54,429.51/75,112.06 = 30,555.57/x
  3. Step 3: Cross multiply
    54,429.51x = 75,112.06 × 30,555.57
  4. Step 4: Simplify right side
    54,429.51x = 2,295,091,807.17
  5. Step 5: Solve for x
    x = 2,295,091,807.17/54,429.51
  6. Step 6: Final answer
    x = 42,166.31

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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.