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Finding the Fourth Proportional to 61,245.30, 91,846.35 and 21,803.70

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Solution

The fourth proportional to 61,245.30, 91,846.35 and 21,803.70 is: 32,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,245.30 : 91,846.35 = 21,803.70 : x
  2. Step 2: Convert to fraction form
    61,245.30/91,846.35 = 21,803.70/x
  3. Step 3: Cross multiply
    61,245.30x = 91,846.35 × 21,803.70
  4. Step 4: Simplify right side
    61,245.30x = 2,002,590,261.50
  5. Step 5: Solve for x
    x = 2,002,590,261.50/61,245.30
  6. Step 6: Final answer
    x = 32,697.86

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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.