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Finding the Fourth Proportional to 72,063.69, 108,095.54 and 36,980.97

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Solution

The fourth proportional to 72,063.69, 108,095.54 and 36,980.97 is: 55,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,063.69 : 108,095.54 = 36,980.97 : x
  2. Step 2: Convert to fraction form
    72,063.69/108,095.54 = 36,980.97/x
  3. Step 3: Cross multiply
    72,063.69x = 108,095.54 × 36,980.97
  4. Step 4: Simplify right side
    72,063.69x = 3,997,477,736.97
  5. Step 5: Solve for x
    x = 3,997,477,736.97/72,063.69
  6. Step 6: Final answer
    x = 55,471.46

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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.