Home / 76,179.44-105,128.08-42,188.96

Finding the Fourth Proportional to 76,179.44, 105,128.08 and 42,188.96

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Solution

The fourth proportional to 76,179.44, 105,128.08 and 42,188.96 is: 58,221.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,179.44 : 105,128.08 = 42,188.96 : x
  2. Step 2: Convert to fraction form
    76,179.44/105,128.08 = 42,188.96/x
  3. Step 3: Cross multiply
    76,179.44x = 105,128.08 × 42,188.96
  4. Step 4: Simplify right side
    76,179.44x = 4,435,244,362.00
  5. Step 5: Solve for x
    x = 4,435,244,362.00/76,179.44
  6. Step 6: Final answer
    x = 58,221.02

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1.5x scale

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.