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Finding the Fourth Proportional to 92,220.60, 138,330.90 and 45,467.40

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Solution

The fourth proportional to 92,220.60, 138,330.90 and 45,467.40 is: 68,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,220.60 : 138,330.90 = 45,467.40 : x
  2. Step 2: Convert to fraction form
    92,220.60/138,330.90 = 45,467.40/x
  3. Step 3: Cross multiply
    92,220.60x = 138,330.90 × 45,467.40
  4. Step 4: Simplify right side
    92,220.60x = 6,289,546,362.66
  5. Step 5: Solve for x
    x = 6,289,546,362.66/92,220.60
  6. Step 6: Final answer
    x = 68,201.10

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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.