Home / 54,090.26-81,064.70-39,147.69

Finding the Fourth Proportional to 54,090.26, 81,064.70 and 39,147.69

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Solution

The fourth proportional to 54,090.26, 81,064.70 and 39,147.69 is: 58,670.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,090.26 : 81,064.70 = 39,147.69 : x
  2. Step 2: Convert to fraction form
    54,090.26/81,064.70 = 39,147.69/x
  3. Step 3: Cross multiply
    54,090.26x = 81,064.70 × 39,147.69
  4. Step 4: Simplify right side
    54,090.26x = 3,173,495,544.61
  5. Step 5: Solve for x
    x = 3,173,495,544.61/54,090.26
  6. Step 6: Final answer
    x = 58,670.37

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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.