Home / 65,302.07-90,122.22-36,621.18

Finding the Fourth Proportional to 65,302.07, 90,122.22 and 36,621.18

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Solution

The fourth proportional to 65,302.07, 90,122.22 and 36,621.18 is: 50,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,302.07 : 90,122.22 = 36,621.18 : x
  2. Step 2: Convert to fraction form
    65,302.07/90,122.22 = 36,621.18/x
  3. Step 3: Cross multiply
    65,302.07x = 90,122.22 × 36,621.18
  4. Step 4: Simplify right side
    65,302.07x = 3,300,382,040.62
  5. Step 5: Solve for x
    x = 3,300,382,040.62/65,302.07
  6. Step 6: Final answer
    x = 50,540.24

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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.