Home / 76,065.08-104,992.40-49,206.89

Finding the Fourth Proportional to 76,065.08, 104,992.40 and 49,206.89

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Solution

The fourth proportional to 76,065.08, 104,992.40 and 49,206.89 is: 67,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,065.08 : 104,992.40 = 49,206.89 : x
  2. Step 2: Convert to fraction form
    76,065.08/104,992.40 = 49,206.89/x
  3. Step 3: Cross multiply
    76,065.08x = 104,992.40 × 49,206.89
  4. Step 4: Simplify right side
    76,065.08x = 5,166,349,863.13
  5. Step 5: Solve for x
    x = 5,166,349,863.13/76,065.08
  6. Step 6: Final answer
    x = 67,920.13

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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.