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Finding the Fourth Proportional to 76,672.60, 114,900.90 and 60,904.60

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Solution

The fourth proportional to 76,672.60, 114,900.90 and 60,904.60 is: 91,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,672.60 : 114,900.90 = 60,904.60 : x
  2. Step 2: Convert to fraction form
    76,672.60/114,900.90 = 60,904.60/x
  3. Step 3: Cross multiply
    76,672.60x = 114,900.90 × 60,904.60
  4. Step 4: Simplify right side
    76,672.60x = 6,997,993,354.14
  5. Step 5: Solve for x
    x = 6,997,993,354.14/76,672.60
  6. Step 6: Final answer
    x = 91,271.11

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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.