Home / 78,716.10-118,099.67-47,121.24

Finding the Fourth Proportional to 78,716.10, 118,099.67 and 47,121.24

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Solution

The fourth proportional to 78,716.10, 118,099.67 and 47,121.24 is: 70,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,716.10 : 118,099.67 = 47,121.24 : x
  2. Step 2: Convert to fraction form
    78,716.10/118,099.67 = 47,121.24/x
  3. Step 3: Cross multiply
    78,716.10x = 118,099.67 × 47,121.24
  4. Step 4: Simplify right side
    78,716.10x = 5,565,002,893.99
  5. Step 5: Solve for x
    x = 5,565,002,893.99/78,716.10
  6. Step 6: Final answer
    x = 70,697.14

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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.