Home / 91,450.94-137,189.16-28,276.22

Finding the Fourth Proportional to 91,450.94, 137,189.16 and 28,276.22

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Solution

The fourth proportional to 91,450.94, 137,189.16 and 28,276.22 is: 42,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,450.94 : 137,189.16 = 28,276.22 : x
  2. Step 2: Convert to fraction form
    91,450.94/137,189.16 = 28,276.22/x
  3. Step 3: Cross multiply
    91,450.94x = 137,189.16 × 28,276.22
  4. Step 4: Simplify right side
    91,450.94x = 3,879,190,869.78
  5. Step 5: Solve for x
    x = 3,879,190,869.78/91,450.94
  6. Step 6: Final answer
    x = 42,418.27

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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.