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Finding the Fourth Proportional to 72,384.30, 108,576.45 and 44,736.30

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Solution

The fourth proportional to 72,384.30, 108,576.45 and 44,736.30 is: 67,104.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,384.30 : 108,576.45 = 44,736.30 : x
  2. Step 2: Convert to fraction form
    72,384.30/108,576.45 = 44,736.30/x
  3. Step 3: Cross multiply
    72,384.30x = 108,576.45 × 44,736.30
  4. Step 4: Simplify right side
    72,384.30x = 4,857,308,640.14
  5. Step 5: Solve for x
    x = 4,857,308,640.14/72,384.30
  6. Step 6: Final answer
    x = 67,104.45

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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.