Home / 79,468.17-109,628.18-57,911.69

Finding the Fourth Proportional to 79,468.17, 109,628.18 and 57,911.69

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Solution

The fourth proportional to 79,468.17, 109,628.18 and 57,911.69 is: 79,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,468.17 : 109,628.18 = 57,911.69 : x
  2. Step 2: Convert to fraction form
    79,468.17/109,628.18 = 57,911.69/x
  3. Step 3: Cross multiply
    79,468.17x = 109,628.18 × 57,911.69
  4. Step 4: Simplify right side
    79,468.17x = 6,348,753,377.11
  5. Step 5: Solve for x
    x = 6,348,753,377.11/79,468.17
  6. Step 6: Final answer
    x = 79,890.52

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1.5x scale

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.