Home / 77,854.33-107,438.97-42,044.34

Finding the Fourth Proportional to 77,854.33, 107,438.97 and 42,044.34

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Solution

The fourth proportional to 77,854.33, 107,438.97 and 42,044.34 is: 58,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,854.33 : 107,438.97 = 42,044.34 : x
  2. Step 2: Convert to fraction form
    77,854.33/107,438.97 = 42,044.34/x
  3. Step 3: Cross multiply
    77,854.33x = 107,438.97 × 42,044.34
  4. Step 4: Simplify right side
    77,854.33x = 4,517,200,583.93
  5. Step 5: Solve for x
    x = 4,517,200,583.93/77,854.33
  6. Step 6: Final answer
    x = 58,021.19

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1.5x scale

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.