Home / 50,345.10-75,453.06-20,783.70

Finding the Fourth Proportional to 50,345.10, 75,453.06 and 20,783.70

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Solution

The fourth proportional to 50,345.10, 75,453.06 and 20,783.70 is: 31,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,345.10 : 75,453.06 = 20,783.70 : x
  2. Step 2: Convert to fraction form
    50,345.10/75,453.06 = 20,783.70/x
  3. Step 3: Cross multiply
    50,345.10x = 75,453.06 × 20,783.70
  4. Step 4: Simplify right side
    50,345.10x = 1,568,193,763.12
  5. Step 5: Solve for x
    x = 1,568,193,763.12/50,345.10
  6. Step 6: Final answer
    x = 31,148.89

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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.