Home / 79,152.50-109,230.45-45,620.66

Finding the Fourth Proportional to 79,152.50, 109,230.45 and 45,620.66

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Solution

The fourth proportional to 79,152.50, 109,230.45 and 45,620.66 is: 62,956.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,152.50 : 109,230.45 = 45,620.66 : x
  2. Step 2: Convert to fraction form
    79,152.50/109,230.45 = 45,620.66/x
  3. Step 3: Cross multiply
    79,152.50x = 109,230.45 × 45,620.66
  4. Step 4: Simplify right side
    79,152.50x = 4,983,165,221.10
  5. Step 5: Solve for x
    x = 4,983,165,221.10/79,152.50
  6. Step 6: Final answer
    x = 62,956.51

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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.