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Finding the Fourth Proportional to 72,171.95, 108,274.32 and 32,740.34

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Solution

The fourth proportional to 72,171.95, 108,274.32 and 32,740.34 is: 49,117.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171.95 : 108,274.32 = 32,740.34 : x
  2. Step 2: Convert to fraction form
    72,171.95/108,274.32 = 32,740.34/x
  3. Step 3: Cross multiply
    72,171.95x = 108,274.32 × 32,740.34
  4. Step 4: Simplify right side
    72,171.95x = 3,544,937,508.70
  5. Step 5: Solve for x
    x = 3,544,937,508.70/72,171.95
  6. Step 6: Final answer
    x = 49,117.94

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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.