Home / 76,154.32-114,269.88-42,911.44

Finding the Fourth Proportional to 76,154.32, 114,269.88 and 42,911.44

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Solution

The fourth proportional to 76,154.32, 114,269.88 and 42,911.44 is: 64,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,154.32 : 114,269.88 = 42,911.44 : x
  2. Step 2: Convert to fraction form
    76,154.32/114,269.88 = 42,911.44/x
  3. Step 3: Cross multiply
    76,154.32x = 114,269.88 × 42,911.44
  4. Step 4: Simplify right side
    76,154.32x = 4,903,485,099.43
  5. Step 5: Solve for x
    x = 4,903,485,099.43/76,154.32
  6. Step 6: Final answer
    x = 64,388.80

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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.