Home / 78,709.59-118,099.22-41,260.75

Finding the Fourth Proportional to 78,709.59, 118,099.22 and 41,260.75

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Solution

The fourth proportional to 78,709.59, 118,099.22 and 41,260.75 is: 61,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709.59 : 118,099.22 = 41,260.75 : x
  2. Step 2: Convert to fraction form
    78,709.59/118,099.22 = 41,260.75/x
  3. Step 3: Cross multiply
    78,709.59x = 118,099.22 × 41,260.75
  4. Step 4: Simplify right side
    78,709.59x = 4,872,861,890.06
  5. Step 5: Solve for x
    x = 4,872,861,890.06/78,709.59
  6. Step 6: Final answer
    x = 61,909.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.