Home / 78,613.08-117,901.38-22,451.72

Finding the Fourth Proportional to 78,613.08, 117,901.38 and 22,451.72

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Solution

The fourth proportional to 78,613.08, 117,901.38 and 22,451.72 is: 33,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,613.08 : 117,901.38 = 22,451.72 : x
  2. Step 2: Convert to fraction form
    78,613.08/117,901.38 = 22,451.72/x
  3. Step 3: Cross multiply
    78,613.08x = 117,901.38 × 22,451.72
  4. Step 4: Simplify right side
    78,613.08x = 2,647,088,771.37
  5. Step 5: Solve for x
    x = 2,647,088,771.37/78,613.08
  6. Step 6: Final answer
    x = 33,672.37

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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.