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Finding the Fourth Proportional to 79,491.96, 119,237.52 and 20,327.52

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Solution

The fourth proportional to 79,491.96, 119,237.52 and 20,327.52 is: 30,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,491.96 : 119,237.52 = 20,327.52 : x
  2. Step 2: Convert to fraction form
    79,491.96/119,237.52 = 20,327.52/x
  3. Step 3: Cross multiply
    79,491.96x = 119,237.52 × 20,327.52
  4. Step 4: Simplify right side
    79,491.96x = 2,423,803,072.55
  5. Step 5: Solve for x
    x = 2,423,803,072.55/79,491.96
  6. Step 6: Final answer
    x = 30,491.17

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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.