Home / 83,974.09-115,875.67-51,703.59

Finding the Fourth Proportional to 83,974.09, 115,875.67 and 51,703.59

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Solution

The fourth proportional to 83,974.09, 115,875.67 and 51,703.59 is: 71,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,974.09 : 115,875.67 = 51,703.59 : x
  2. Step 2: Convert to fraction form
    83,974.09/115,875.67 = 51,703.59/x
  3. Step 3: Cross multiply
    83,974.09x = 115,875.67 × 51,703.59
  4. Step 4: Simplify right side
    83,974.09x = 5,991,188,132.66
  5. Step 5: Solve for x
    x = 5,991,188,132.66/83,974.09
  6. Step 6: Final answer
    x = 71,345.67

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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.