Home / 83,384.98-115,072.19-45,145.36

Finding the Fourth Proportional to 83,384.98, 115,072.19 and 45,145.36

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Solution

The fourth proportional to 83,384.98, 115,072.19 and 45,145.36 is: 62,301.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,384.98 : 115,072.19 = 45,145.36 : x
  2. Step 2: Convert to fraction form
    83,384.98/115,072.19 = 45,145.36/x
  3. Step 3: Cross multiply
    83,384.98x = 115,072.19 × 45,145.36
  4. Step 4: Simplify right side
    83,384.98x = 5,194,975,218.52
  5. Step 5: Solve for x
    x = 5,194,975,218.52/83,384.98
  6. Step 6: Final answer
    x = 62,301.09

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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.