Home / 86,829.10-119,709.29-62,609.79

Finding the Fourth Proportional to 86,829.10, 119,709.29 and 62,609.79

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Solution

The fourth proportional to 86,829.10, 119,709.29 and 62,609.79 is: 86,318.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,829.10 : 119,709.29 = 62,609.79 : x
  2. Step 2: Convert to fraction form
    86,829.10/119,709.29 = 62,609.79/x
  3. Step 3: Cross multiply
    86,829.10x = 119,709.29 × 62,609.79
  4. Step 4: Simplify right side
    86,829.10x = 7,494,974,113.38
  5. Step 5: Solve for x
    x = 7,494,974,113.38/86,829.10
  6. Step 6: Final answer
    x = 86,318.69

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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.