Home / 49,728.56-74,596.08-20,145.74

Finding the Fourth Proportional to 49,728.56, 74,596.08 and 20,145.74

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Solution

The fourth proportional to 49,728.56, 74,596.08 and 20,145.74 is: 30,219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,728.56 : 74,596.08 = 20,145.74 : x
  2. Step 2: Convert to fraction form
    49,728.56/74,596.08 = 20,145.74/x
  3. Step 3: Cross multiply
    49,728.56x = 74,596.08 × 20,145.74
  4. Step 4: Simplify right side
    49,728.56x = 1,502,793,232.70
  5. Step 5: Solve for x
    x = 1,502,793,232.70/49,728.56
  6. Step 6: Final answer
    x = 30,219.92

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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.