Home / 83,927.81-115,674.55-61,229.48

Finding the Fourth Proportional to 83,927.81, 115,674.55 and 61,229.48

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Solution

The fourth proportional to 83,927.81, 115,674.55 and 61,229.48 is: 84,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,927.81 : 115,674.55 = 61,229.48 : x
  2. Step 2: Convert to fraction form
    83,927.81/115,674.55 = 61,229.48/x
  3. Step 3: Cross multiply
    83,927.81x = 115,674.55 × 61,229.48
  4. Step 4: Simplify right side
    83,927.81x = 7,082,691,814.29
  5. Step 5: Solve for x
    x = 7,082,691,814.29/83,927.81
  6. Step 6: Final answer
    x = 84,390.28

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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.