Home / 79,166.23-109,136.72-48,934.40

Finding the Fourth Proportional to 79,166.23, 109,136.72 and 48,934.40

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Solution

The fourth proportional to 79,166.23, 109,136.72 and 48,934.40 is: 67,459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,166.23 : 109,136.72 = 48,934.40 : x
  2. Step 2: Convert to fraction form
    79,166.23/109,136.72 = 48,934.40/x
  3. Step 3: Cross multiply
    79,166.23x = 109,136.72 × 48,934.40
  4. Step 4: Simplify right side
    79,166.23x = 5,340,539,487.82
  5. Step 5: Solve for x
    x = 5,340,539,487.82/79,166.23
  6. Step 6: Final answer
    x = 67,459.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.