Home / 65,530.28-90,431.30-37,235.97

Finding the Fourth Proportional to 65,530.28, 90,431.30 and 37,235.97

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Solution

The fourth proportional to 65,530.28, 90,431.30 and 37,235.97 is: 51,385.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,530.28 : 90,431.30 = 37,235.97 : x
  2. Step 2: Convert to fraction form
    65,530.28/90,431.30 = 37,235.97/x
  3. Step 3: Cross multiply
    65,530.28x = 90,431.30 × 37,235.97
  4. Step 4: Simplify right side
    65,530.28x = 3,367,297,266.95
  5. Step 5: Solve for x
    x = 3,367,297,266.95/65,530.28
  6. Step 6: Final answer
    x = 51,385.36

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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.