Home / 79,578.20-119,293.14-54,630

Finding the Fourth Proportional to 79,578.20, 119,293.14 and 54,630

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Solution

The fourth proportional to 79,578.20, 119,293.14 and 54,630 is: 81,894.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,578.20 : 119,293.14 = 54,630 : x
  2. Step 2: Convert to fraction form
    79,578.20/119,293.14 = 54,630/x
  3. Step 3: Cross multiply
    79,578.20x = 119,293.14 × 54,630
  4. Step 4: Simplify right side
    79,578.20x = 6,516,984,238.20
  5. Step 5: Solve for x
    x = 6,516,984,238.20/79,578.20
  6. Step 6: Final answer
    x = 81,894.09

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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.