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Finding the Fourth Proportional to 66,102.81, 91,222.37 and 35,888.32

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Solution

The fourth proportional to 66,102.81, 91,222.37 and 35,888.32 is: 49,526.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,102.81 : 91,222.37 = 35,888.32 : x
  2. Step 2: Convert to fraction form
    66,102.81/91,222.37 = 35,888.32/x
  3. Step 3: Cross multiply
    66,102.81x = 91,222.37 × 35,888.32
  4. Step 4: Simplify right side
    66,102.81x = 3,273,817,605.72
  5. Step 5: Solve for x
    x = 3,273,817,605.72/66,102.81
  6. Step 6: Final answer
    x = 49,526.15

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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.