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Finding the Fourth Proportional to 65,170.03, 89,913.74 and 36,485.48

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Solution

The fourth proportional to 65,170.03, 89,913.74 and 36,485.48 is: 50,338.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,170.03 : 89,913.74 = 36,485.48 : x
  2. Step 2: Convert to fraction form
    65,170.03/89,913.74 = 36,485.48/x
  3. Step 3: Cross multiply
    65,170.03x = 89,913.74 × 36,485.48
  4. Step 4: Simplify right side
    65,170.03x = 3,280,545,512.93
  5. Step 5: Solve for x
    x = 3,280,545,512.93/65,170.03
  6. Step 6: Final answer
    x = 50,338.25

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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.