Home / 66,621.88-91,938.44-36,407.22

Finding the Fourth Proportional to 66,621.88, 91,938.44 and 36,407.22

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Solution

The fourth proportional to 66,621.88, 91,938.44 and 36,407.22 is: 50,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,621.88 : 91,938.44 = 36,407.22 : x
  2. Step 2: Convert to fraction form
    66,621.88/91,938.44 = 36,407.22/x
  3. Step 3: Cross multiply
    66,621.88x = 91,938.44 × 36,407.22
  4. Step 4: Simplify right side
    66,621.88x = 3,347,223,011.54
  5. Step 5: Solve for x
    x = 3,347,223,011.54/66,621.88
  6. Step 6: Final answer
    x = 50,242.10

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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.