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Finding the Fourth Proportional to 79,498.74, 119,247.60 and 20,334.30

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Solution

The fourth proportional to 79,498.74, 119,247.60 and 20,334.30 is: 30,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,498.74 : 119,247.60 = 20,334.30 : x
  2. Step 2: Convert to fraction form
    79,498.74/119,247.60 = 20,334.30/x
  3. Step 3: Cross multiply
    79,498.74x = 119,247.60 × 20,334.30
  4. Step 4: Simplify right side
    79,498.74x = 2,424,816,472.68
  5. Step 5: Solve for x
    x = 2,424,816,472.68/79,498.74
  6. Step 6: Final answer
    x = 30,501.32

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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.