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Finding the Fourth Proportional to 66,102.16, 91,221.06 and 35,887.51

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Solution

The fourth proportional to 66,102.16, 91,221.06 and 35,887.51 is: 49,524.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,102.16 : 91,221.06 = 35,887.51 : x
  2. Step 2: Convert to fraction form
    66,102.16/91,221.06 = 35,887.51/x
  3. Step 3: Cross multiply
    66,102.16x = 91,221.06 × 35,887.51
  4. Step 4: Simplify right side
    66,102.16x = 3,273,696,702.96
  5. Step 5: Solve for x
    x = 3,273,696,702.96/66,102.16
  6. Step 6: Final answer
    x = 49,524.81

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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.