Home / 54,210.18-81,268.54-20,953.58

Finding the Fourth Proportional to 54,210.18, 81,268.54 and 20,953.58

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Solution

The fourth proportional to 54,210.18, 81,268.54 and 20,953.58 is: 31,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,210.18 : 81,268.54 = 20,953.58 : x
  2. Step 2: Convert to fraction form
    54,210.18/81,268.54 = 20,953.58/x
  3. Step 3: Cross multiply
    54,210.18x = 81,268.54 × 20,953.58
  4. Step 4: Simplify right side
    54,210.18x = 1,702,866,854.37
  5. Step 5: Solve for x
    x = 1,702,866,854.37/54,210.18
  6. Step 6: Final answer
    x = 31,412.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.