Home / 79,619.07-119,449.13-57,155.79

Finding the Fourth Proportional to 79,619.07, 119,449.13 and 57,155.79

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Solution

The fourth proportional to 79,619.07, 119,449.13 and 57,155.79 is: 85,748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,619.07 : 119,449.13 = 57,155.79 : x
  2. Step 2: Convert to fraction form
    79,619.07/119,449.13 = 57,155.79/x
  3. Step 3: Cross multiply
    79,619.07x = 119,449.13 × 57,155.79
  4. Step 4: Simplify right side
    79,619.07x = 6,827,209,104.18
  5. Step 5: Solve for x
    x = 6,827,209,104.18/79,619.07
  6. Step 6: Final answer
    x = 85,748.42

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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.