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Finding the Fourth Proportional to 81,503.64, 122,242.34 and 22,325.48

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Solution

The fourth proportional to 81,503.64, 122,242.34 and 22,325.48 is: 33,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,503.64 : 122,242.34 = 22,325.48 : x
  2. Step 2: Convert to fraction form
    81,503.64/122,242.34 = 22,325.48/x
  3. Step 3: Cross multiply
    81,503.64x = 122,242.34 × 22,325.48
  4. Step 4: Simplify right side
    81,503.64x = 2,729,118,916.82
  5. Step 5: Solve for x
    x = 2,729,118,916.82/81,503.64
  6. Step 6: Final answer
    x = 33,484.63

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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.