Home / 76,138.59-105,074.06-41,685.74

Finding the Fourth Proportional to 76,138.59, 105,074.06 and 41,685.74

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Solution

The fourth proportional to 76,138.59, 105,074.06 and 41,685.74 is: 57,527.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,138.59 : 105,074.06 = 41,685.74 : x
  2. Step 2: Convert to fraction form
    76,138.59/105,074.06 = 41,685.74/x
  3. Step 3: Cross multiply
    76,138.59x = 105,074.06 × 41,685.74
  4. Step 4: Simplify right side
    76,138.59x = 4,380,089,212.11
  5. Step 5: Solve for x
    x = 4,380,089,212.11/76,138.59
  6. Step 6: Final answer
    x = 57,527.85

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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.