Home / 72,810.08-109,257.57-30,687.55

Finding the Fourth Proportional to 72,810.08, 109,257.57 and 30,687.55

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Solution

The fourth proportional to 72,810.08, 109,257.57 and 30,687.55 is: 46,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,810.08 : 109,257.57 = 30,687.55 : x
  2. Step 2: Convert to fraction form
    72,810.08/109,257.57 = 30,687.55/x
  3. Step 3: Cross multiply
    72,810.08x = 109,257.57 × 30,687.55
  4. Step 4: Simplify right side
    72,810.08x = 3,352,846,869.11
  5. Step 5: Solve for x
    x = 3,352,846,869.11/72,810.08
  6. Step 6: Final answer
    x = 46,049.21

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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.