Home / 76,331.04-105,315.30-49,474.68

Finding the Fourth Proportional to 76,331.04, 105,315.30 and 49,474.68

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Solution

The fourth proportional to 76,331.04, 105,315.30 and 49,474.68 is: 68,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,331.04 : 105,315.30 = 49,474.68 : x
  2. Step 2: Convert to fraction form
    76,331.04/105,315.30 = 49,474.68/x
  3. Step 3: Cross multiply
    76,331.04x = 105,315.30 × 49,474.68
  4. Step 4: Simplify right side
    76,331.04x = 5,210,440,766.60
  5. Step 5: Solve for x
    x = 5,210,440,766.60/76,331.04
  6. Step 6: Final answer
    x = 68,261.10

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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.