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Finding the Fourth Proportional to 72,429.40, 108,611.70 and 32,966.20

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Solution

The fourth proportional to 72,429.40, 108,611.70 and 32,966.20 is: 49,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,429.40 : 108,611.70 = 32,966.20 : x
  2. Step 2: Convert to fraction form
    72,429.40/108,611.70 = 32,966.20/x
  3. Step 3: Cross multiply
    72,429.40x = 108,611.70 × 32,966.20
  4. Step 4: Simplify right side
    72,429.40x = 3,580,515,024.54
  5. Step 5: Solve for x
    x = 3,580,515,024.54/72,429.40
  6. Step 6: Final answer
    x = 49,434.55

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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.