Home / 91,364.12-137,060.94-28,169.44

Finding the Fourth Proportional to 91,364.12, 137,060.94 and 28,169.44

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Solution

The fourth proportional to 91,364.12, 137,060.94 and 28,169.44 is: 42,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,364.12 : 137,060.94 = 28,169.44 : x
  2. Step 2: Convert to fraction form
    91,364.12/137,060.94 = 28,169.44/x
  3. Step 3: Cross multiply
    91,364.12x = 137,060.94 × 28,169.44
  4. Step 4: Simplify right side
    91,364.12x = 3,860,929,925.67
  5. Step 5: Solve for x
    x = 3,860,929,925.67/91,364.12
  6. Step 6: Final answer
    x = 42,258.71

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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.