Home / 79,586.86-119,384.55-20,423.04

Finding the Fourth Proportional to 79,586.86, 119,384.55 and 20,423.04

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Solution

The fourth proportional to 79,586.86, 119,384.55 and 20,423.04 is: 30,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,586.86 : 119,384.55 = 20,423.04 : x
  2. Step 2: Convert to fraction form
    79,586.86/119,384.55 = 20,423.04/x
  3. Step 3: Cross multiply
    79,586.86x = 119,384.55 × 20,423.04
  4. Step 4: Simplify right side
    79,586.86x = 2,438,195,337.92
  5. Step 5: Solve for x
    x = 2,438,195,337.92/79,586.86
  6. Step 6: Final answer
    x = 30,635.65

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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.