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Finding the Fourth Proportional to 89,480.78, 134,218.08 and 22,921.48

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Solution

The fourth proportional to 89,480.78, 134,218.08 and 22,921.48 is: 34,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,480.78 : 134,218.08 = 22,921.48 : x
  2. Step 2: Convert to fraction form
    89,480.78/134,218.08 = 22,921.48/x
  3. Step 3: Cross multiply
    89,480.78x = 134,218.08 × 22,921.48
  4. Step 4: Simplify right side
    89,480.78x = 3,076,476,700.81
  5. Step 5: Solve for x
    x = 3,076,476,700.81/89,480.78
  6. Step 6: Final answer
    x = 34,381.43

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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.