Home / 77,909.74-116,884.32-21,749.81

Finding the Fourth Proportional to 77,909.74, 116,884.32 and 21,749.81

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Solution

The fourth proportional to 77,909.74, 116,884.32 and 21,749.81 is: 32,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,909.74 : 116,884.32 = 21,749.81 : x
  2. Step 2: Convert to fraction form
    77,909.74/116,884.32 = 21,749.81/x
  3. Step 3: Cross multiply
    77,909.74x = 116,884.32 × 21,749.81
  4. Step 4: Simplify right side
    77,909.74x = 2,542,211,167.56
  5. Step 5: Solve for x
    x = 2,542,211,167.56/77,909.74
  6. Step 6: Final answer
    x = 32,630.21

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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.