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Finding the Fourth Proportional to 61,392.32, 84,769.08 and 47,940.24

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Solution

The fourth proportional to 61,392.32, 84,769.08 and 47,940.24 is: 66,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,392.32 : 84,769.08 = 47,940.24 : x
  2. Step 2: Convert to fraction form
    61,392.32/84,769.08 = 47,940.24/x
  3. Step 3: Cross multiply
    61,392.32x = 84,769.08 × 47,940.24
  4. Step 4: Simplify right side
    61,392.32x = 4,063,850,039.78
  5. Step 5: Solve for x
    x = 4,063,850,039.78/61,392.32
  6. Step 6: Final answer
    x = 66,194.76

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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.