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Finding the Fourth Proportional to 89,274.96, 133,818.96 and 30,090.20

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Solution

The fourth proportional to 89,274.96, 133,818.96 and 30,090.20 is: 45,103.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,274.96 : 133,818.96 = 30,090.20 : x
  2. Step 2: Convert to fraction form
    89,274.96/133,818.96 = 30,090.20/x
  3. Step 3: Cross multiply
    89,274.96x = 133,818.96 × 30,090.20
  4. Step 4: Simplify right side
    89,274.96x = 4,026,639,270.19
  5. Step 5: Solve for x
    x = 4,026,639,270.19/89,274.96
  6. Step 6: Final answer
    x = 45,103.79

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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.