Home / 76,624.32-105,790.96-49,412.58

Finding the Fourth Proportional to 76,624.32, 105,790.96 and 49,412.58

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Solution

The fourth proportional to 76,624.32, 105,790.96 and 49,412.58 is: 68,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,624.32 : 105,790.96 = 49,412.58 : x
  2. Step 2: Convert to fraction form
    76,624.32/105,790.96 = 49,412.58/x
  3. Step 3: Cross multiply
    76,624.32x = 105,790.96 × 49,412.58
  4. Step 4: Simplify right side
    76,624.32x = 5,227,404,274.28
  5. Step 5: Solve for x
    x = 5,227,404,274.28/76,624.32
  6. Step 6: Final answer
    x = 68,221.22

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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.