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Finding the Fourth Proportional to 61,184.32, 91,785.68 and 21,738.16

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Solution

The fourth proportional to 61,184.32, 91,785.68 and 21,738.16 is: 32,610.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,184.32 : 91,785.68 = 21,738.16 : x
  2. Step 2: Convert to fraction form
    61,184.32/91,785.68 = 21,738.16/x
  3. Step 3: Cross multiply
    61,184.32x = 91,785.68 × 21,738.16
  4. Step 4: Simplify right side
    61,184.32x = 1,995,251,797.55
  5. Step 5: Solve for x
    x = 1,995,251,797.55/61,184.32
  6. Step 6: Final answer
    x = 32,610.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.