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Finding the Fourth Proportional to 66,485.76, 91,750.22 and 36,271.07

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Solution

The fourth proportional to 66,485.76, 91,750.22 and 36,271.07 is: 50,054.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,485.76 : 91,750.22 = 36,271.07 : x
  2. Step 2: Convert to fraction form
    66,485.76/91,750.22 = 36,271.07/x
  3. Step 3: Cross multiply
    66,485.76x = 91,750.22 × 36,271.07
  4. Step 4: Simplify right side
    66,485.76x = 3,327,878,700.16
  5. Step 5: Solve for x
    x = 3,327,878,700.16/66,485.76
  6. Step 6: Final answer
    x = 50,054.01

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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.