Home / 77,367.28-116,031.64-21,207.64

Finding the Fourth Proportional to 77,367.28, 116,031.64 and 21,207.64

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Solution

The fourth proportional to 77,367.28, 116,031.64 and 21,207.64 is: 31,806.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,367.28 : 116,031.64 = 21,207.64 : x
  2. Step 2: Convert to fraction form
    77,367.28/116,031.64 = 21,207.64/x
  3. Step 3: Cross multiply
    77,367.28x = 116,031.64 × 21,207.64
  4. Step 4: Simplify right side
    77,367.28x = 2,460,757,249.73
  5. Step 5: Solve for x
    x = 2,460,757,249.73/77,367.28
  6. Step 6: Final answer
    x = 31,806.18

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1.5x scale

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.