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Finding the Fourth Proportional to 61,939.63, 85,478.76 and 36,441.46

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Solution

The fourth proportional to 61,939.63, 85,478.76 and 36,441.46 is: 50,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,939.63 : 85,478.76 = 36,441.46 : x
  2. Step 2: Convert to fraction form
    61,939.63/85,478.76 = 36,441.46/x
  3. Step 3: Cross multiply
    61,939.63x = 85,478.76 × 36,441.46
  4. Step 4: Simplify right side
    61,939.63x = 3,114,970,813.39
  5. Step 5: Solve for x
    x = 3,114,970,813.39/61,939.63
  6. Step 6: Final answer
    x = 50,290.43

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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.