Home / 43,358.79-65,067.75-19,985.43

Finding the Fourth Proportional to 43,358.79, 65,067.75 and 19,985.43

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Solution

The fourth proportional to 43,358.79, 65,067.75 and 19,985.43 is: 29,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,358.79 : 65,067.75 = 19,985.43 : x
  2. Step 2: Convert to fraction form
    43,358.79/65,067.75 = 19,985.43/x
  3. Step 3: Cross multiply
    43,358.79x = 65,067.75 × 19,985.43
  4. Step 4: Simplify right side
    43,358.79x = 1,300,406,962.88
  5. Step 5: Solve for x
    x = 1,300,406,962.88/43,358.79
  6. Step 6: Final answer
    x = 29,991.77

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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.