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Finding the Fourth Proportional to 79,859.96, 119,585.34 and 77,494.90

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Solution

The fourth proportional to 79,859.96, 119,585.34 and 77,494.90 is: 116,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,859.96 : 119,585.34 = 77,494.90 : x
  2. Step 2: Convert to fraction form
    79,859.96/119,585.34 = 77,494.90/x
  3. Step 3: Cross multiply
    79,859.96x = 119,585.34 × 77,494.90
  4. Step 4: Simplify right side
    79,859.96x = 9,267,253,964.77
  5. Step 5: Solve for x
    x = 9,267,253,964.77/79,859.96
  6. Step 6: Final answer
    x = 116,043.81

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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.