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Finding the Fourth Proportional to 66,017.68, 91,104.86 and 35,803.16

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Solution

The fourth proportional to 66,017.68, 91,104.86 and 35,803.16 is: 49,408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,017.68 : 91,104.86 = 35,803.16 : x
  2. Step 2: Convert to fraction form
    66,017.68/91,104.86 = 35,803.16/x
  3. Step 3: Cross multiply
    66,017.68x = 91,104.86 × 35,803.16
  4. Step 4: Simplify right side
    66,017.68x = 3,261,841,879.36
  5. Step 5: Solve for x
    x = 3,261,841,879.36/66,017.68
  6. Step 6: Final answer
    x = 49,408.61

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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.