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Finding the Fourth Proportional to 79,507.86, 119,260.94 and 20,343.06

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Solution

The fourth proportional to 79,507.86, 119,260.94 and 20,343.06 is: 30,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507.86 : 119,260.94 = 20,343.06 : x
  2. Step 2: Convert to fraction form
    79,507.86/119,260.94 = 20,343.06/x
  3. Step 3: Cross multiply
    79,507.86x = 119,260.94 × 20,343.06
  4. Step 4: Simplify right side
    79,507.86x = 2,426,132,458.08
  5. Step 5: Solve for x
    x = 2,426,132,458.08/79,507.86
  6. Step 6: Final answer
    x = 30,514.37

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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.