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Finding the Fourth Proportional to 78,662.38, 108,555.92 and 44,665.46

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Solution

The fourth proportional to 78,662.38, 108,555.92 and 44,665.46 is: 61,639.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,662.38 : 108,555.92 = 44,665.46 : x
  2. Step 2: Convert to fraction form
    78,662.38/108,555.92 = 44,665.46/x
  3. Step 3: Cross multiply
    78,662.38x = 108,555.92 × 44,665.46
  4. Step 4: Simplify right side
    78,662.38x = 4,848,700,102.52
  5. Step 5: Solve for x
    x = 4,848,700,102.52/78,662.38
  6. Step 6: Final answer
    x = 61,639.38

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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.