Home / 82,179.68-113,421.86-47,719.04

Finding the Fourth Proportional to 82,179.68, 113,421.86 and 47,719.04

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Solution

The fourth proportional to 82,179.68, 113,421.86 and 47,719.04 is: 65,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,179.68 : 113,421.86 = 47,719.04 : x
  2. Step 2: Convert to fraction form
    82,179.68/113,421.86 = 47,719.04/x
  3. Step 3: Cross multiply
    82,179.68x = 113,421.86 × 47,719.04
  4. Step 4: Simplify right side
    82,179.68x = 5,412,381,826.40
  5. Step 5: Solve for x
    x = 5,412,381,826.40/82,179.68
  6. Step 6: Final answer
    x = 65,860.35

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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.