Home / 79,156.42-109,225.65-45,162.88

Finding the Fourth Proportional to 79,156.42, 109,225.65 and 45,162.88

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Solution

The fourth proportional to 79,156.42, 109,225.65 and 45,162.88 is: 62,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,156.42 : 109,225.65 = 45,162.88 : x
  2. Step 2: Convert to fraction form
    79,156.42/109,225.65 = 45,162.88/x
  3. Step 3: Cross multiply
    79,156.42x = 109,225.65 × 45,162.88
  4. Step 4: Simplify right side
    79,156.42x = 4,932,944,923.87
  5. Step 5: Solve for x
    x = 4,932,944,923.87/79,156.42
  6. Step 6: Final answer
    x = 62,318.95

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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.