Home / 76,763.04-105,868.26-49,884.81

Finding the Fourth Proportional to 76,763.04, 105,868.26 and 49,884.81

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Solution

The fourth proportional to 76,763.04, 105,868.26 and 49,884.81 is: 68,798.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,763.04 : 105,868.26 = 49,884.81 : x
  2. Step 2: Convert to fraction form
    76,763.04/105,868.26 = 49,884.81/x
  3. Step 3: Cross multiply
    76,763.04x = 105,868.26 × 49,884.81
  4. Step 4: Simplify right side
    76,763.04x = 5,281,218,035.13
  5. Step 5: Solve for x
    x = 5,281,218,035.13/76,763.04
  6. Step 6: Final answer
    x = 68,798.97

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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.