Home / 51,029.97-70,419.96-28,368.42

Finding the Fourth Proportional to 51,029.97, 70,419.96 and 28,368.42

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Solution

The fourth proportional to 51,029.97, 70,419.96 and 28,368.42 is: 39,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,029.97 : 70,419.96 = 28,368.42 : x
  2. Step 2: Convert to fraction form
    51,029.97/70,419.96 = 28,368.42/x
  3. Step 3: Cross multiply
    51,029.97x = 70,419.96 × 28,368.42
  4. Step 4: Simplify right side
    51,029.97x = 1,997,703,001.66
  5. Step 5: Solve for x
    x = 1,997,703,001.66/51,029.97
  6. Step 6: Final answer
    x = 39,147.64

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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.