Home / 91,599.36-137,397.96-51,621.36

Finding the Fourth Proportional to 91,599.36, 137,397.96 and 51,621.36

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Solution

The fourth proportional to 91,599.36, 137,397.96 and 51,621.36 is: 77,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,599.36 : 137,397.96 = 51,621.36 : x
  2. Step 2: Convert to fraction form
    91,599.36/137,397.96 = 51,621.36/x
  3. Step 3: Cross multiply
    91,599.36x = 137,397.96 × 51,621.36
  4. Step 4: Simplify right side
    91,599.36x = 7,092,669,556.43
  5. Step 5: Solve for x
    x = 7,092,669,556.43/91,599.36
  6. Step 6: Final answer
    x = 77,431.43

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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.