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Finding the Fourth Proportional to 61,063.48, 91,608.40 and 18,942.74

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Solution

The fourth proportional to 61,063.48, 91,608.40 and 18,942.74 is: 28,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,063.48 : 91,608.40 = 18,942.74 : x
  2. Step 2: Convert to fraction form
    61,063.48/91,608.40 = 18,942.74/x
  3. Step 3: Cross multiply
    61,063.48x = 91,608.40 × 18,942.74
  4. Step 4: Simplify right side
    61,063.48x = 1,735,314,103.02
  5. Step 5: Solve for x
    x = 1,735,314,103.02/61,063.48
  6. Step 6: Final answer
    x = 28,418.20

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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.