Home / 54,108.68-74,666.43-31,451.36

Finding the Fourth Proportional to 54,108.68, 74,666.43 and 31,451.36

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Solution

The fourth proportional to 54,108.68, 74,666.43 and 31,451.36 is: 43,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,108.68 : 74,666.43 = 31,451.36 : x
  2. Step 2: Convert to fraction form
    54,108.68/74,666.43 = 31,451.36/x
  3. Step 3: Cross multiply
    54,108.68x = 74,666.43 × 31,451.36
  4. Step 4: Simplify right side
    54,108.68x = 2,348,360,396.51
  5. Step 5: Solve for x
    x = 2,348,360,396.51/54,108.68
  6. Step 6: Final answer
    x = 43,400.81

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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.