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Finding the Fourth Proportional to 66,570.76, 91,868.27 and 37,889.01

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Solution

The fourth proportional to 66,570.76, 91,868.27 and 37,889.01 is: 52,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570.76 : 91,868.27 = 37,889.01 : x
  2. Step 2: Convert to fraction form
    66,570.76/91,868.27 = 37,889.01/x
  3. Step 3: Cross multiply
    66,570.76x = 91,868.27 × 37,889.01
  4. Step 4: Simplify right side
    66,570.76x = 3,480,797,611.27
  5. Step 5: Solve for x
    x = 3,480,797,611.27/66,570.76
  6. Step 6: Final answer
    x = 52,287.19

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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.