Home / 57,234.81-78,970.77-49,667.79

Finding the Fourth Proportional to 57,234.81, 78,970.77 and 49,667.79

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Solution

The fourth proportional to 57,234.81, 78,970.77 and 49,667.79 is: 68,530.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.81 : 78,970.77 = 49,667.79 : x
  2. Step 2: Convert to fraction form
    57,234.81/78,970.77 = 49,667.79/x
  3. Step 3: Cross multiply
    57,234.81x = 78,970.77 × 49,667.79
  4. Step 4: Simplify right side
    57,234.81x = 3,922,303,620.50
  5. Step 5: Solve for x
    x = 3,922,303,620.50/57,234.81
  6. Step 6: Final answer
    x = 68,530.04

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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.