Home / 77,093.28-115,683.66-30,378.96

Finding the Fourth Proportional to 77,093.28, 115,683.66 and 30,378.96

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Solution

The fourth proportional to 77,093.28, 115,683.66 and 30,378.96 is: 45,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,093.28 : 115,683.66 = 30,378.96 : x
  2. Step 2: Convert to fraction form
    77,093.28/115,683.66 = 30,378.96/x
  3. Step 3: Cross multiply
    77,093.28x = 115,683.66 × 30,378.96
  4. Step 4: Simplify right side
    77,093.28x = 3,514,349,279.79
  5. Step 5: Solve for x
    x = 3,514,349,279.79/77,093.28
  6. Step 6: Final answer
    x = 45,585.68

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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.