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Finding the Fourth Proportional to 79,310.96, 109,411.40 and 47,473.71

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Solution

The fourth proportional to 79,310.96, 109,411.40 and 47,473.71 is: 65,491.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,310.96 : 109,411.40 = 47,473.71 : x
  2. Step 2: Convert to fraction form
    79,310.96/109,411.40 = 47,473.71/x
  3. Step 3: Cross multiply
    79,310.96x = 109,411.40 × 47,473.71
  4. Step 4: Simplify right side
    79,310.96x = 5,194,165,192.98
  5. Step 5: Solve for x
    x = 5,194,165,192.98/79,310.96
  6. Step 6: Final answer
    x = 65,491.14

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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.