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Finding the Fourth Proportional to 64,843.08, 89,513.32 and 45,738.44

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Solution

The fourth proportional to 64,843.08, 89,513.32 and 45,738.44 is: 63,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,843.08 : 89,513.32 = 45,738.44 : x
  2. Step 2: Convert to fraction form
    64,843.08/89,513.32 = 45,738.44/x
  3. Step 3: Cross multiply
    64,843.08x = 89,513.32 × 45,738.44
  4. Step 4: Simplify right side
    64,843.08x = 4,094,199,616.02
  5. Step 5: Solve for x
    x = 4,094,199,616.02/64,843.08
  6. Step 6: Final answer
    x = 63,140.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.