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Finding the Fourth Proportional to 79,614.80, 119,314.20 and 51,448.40

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Solution

The fourth proportional to 79,614.80, 119,314.20 and 51,448.40 is: 77,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,614.80 : 119,314.20 = 51,448.40 : x
  2. Step 2: Convert to fraction form
    79,614.80/119,314.20 = 51,448.40/x
  3. Step 3: Cross multiply
    79,614.80x = 119,314.20 × 51,448.40
  4. Step 4: Simplify right side
    79,614.80x = 6,138,524,687.28
  5. Step 5: Solve for x
    x = 6,138,524,687.28/79,614.80
  6. Step 6: Final answer
    x = 77,102.81

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1.5x scale

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.