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Finding the Fourth Proportional to 77,467.68, 116,253.24 and 28,219.68

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Solution

The fourth proportional to 77,467.68, 116,253.24 and 28,219.68 is: 42,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,467.68 : 116,253.24 = 28,219.68 : x
  2. Step 2: Convert to fraction form
    77,467.68/116,253.24 = 28,219.68/x
  3. Step 3: Cross multiply
    77,467.68x = 116,253.24 × 28,219.68
  4. Step 4: Simplify right side
    77,467.68x = 3,280,629,231.76
  5. Step 5: Solve for x
    x = 3,280,629,231.76/77,467.68
  6. Step 6: Final answer
    x = 42,348.36

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1.5x scale

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.