Home / 79,720.07-119,713.21-49,803.80

Finding the Fourth Proportional to 79,720.07, 119,713.21 and 49,803.80

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Solution

The fourth proportional to 79,720.07, 119,713.21 and 49,803.80 is: 74,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,720.07 : 119,713.21 = 49,803.80 : x
  2. Step 2: Convert to fraction form
    79,720.07/119,713.21 = 49,803.80/x
  3. Step 3: Cross multiply
    79,720.07x = 119,713.21 × 49,803.80
  4. Step 4: Simplify right side
    79,720.07x = 5,962,172,045.12
  5. Step 5: Solve for x
    x = 5,962,172,045.12/79,720.07
  6. Step 6: Final answer
    x = 74,788.85

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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.