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Finding the Fourth Proportional to 61,216.88, 91,825.05 and 21,775.46

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Solution

The fourth proportional to 61,216.88, 91,825.05 and 21,775.46 is: 32,663.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,216.88 : 91,825.05 = 21,775.46 : x
  2. Step 2: Convert to fraction form
    61,216.88/91,825.05 = 21,775.46/x
  3. Step 3: Cross multiply
    61,216.88x = 91,825.05 × 21,775.46
  4. Step 4: Simplify right side
    61,216.88x = 1,999,532,703.27
  5. Step 5: Solve for x
    x = 1,999,532,703.27/61,216.88
  6. Step 6: Final answer
    x = 32,663.09

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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.