Home / 72,135.97-108,225.83-34,685.42

Finding the Fourth Proportional to 72,135.97, 108,225.83 and 34,685.42

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Solution

The fourth proportional to 72,135.97, 108,225.83 and 34,685.42 is: 52,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,135.97 : 108,225.83 = 34,685.42 : x
  2. Step 2: Convert to fraction form
    72,135.97/108,225.83 = 34,685.42/x
  3. Step 3: Cross multiply
    72,135.97x = 108,225.83 × 34,685.42
  4. Step 4: Simplify right side
    72,135.97x = 3,753,857,924.41
  5. Step 5: Solve for x
    x = 3,753,857,924.41/72,135.97
  6. Step 6: Final answer
    x = 52,038.64

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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.