Home / 78,685.58-118,063.26-41,236.75

Finding the Fourth Proportional to 78,685.58, 118,063.26 and 41,236.75

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Solution

The fourth proportional to 78,685.58, 118,063.26 and 41,236.75 is: 61,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,685.58 : 118,063.26 = 41,236.75 : x
  2. Step 2: Convert to fraction form
    78,685.58/118,063.26 = 41,236.75/x
  3. Step 3: Cross multiply
    78,685.58x = 118,063.26 × 41,236.75
  4. Step 4: Simplify right side
    78,685.58x = 4,868,545,136.81
  5. Step 5: Solve for x
    x = 4,868,545,136.81/78,685.58
  6. Step 6: Final answer
    x = 61,873.41

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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.