Home / 50,741.20-76,111.80-13,805.20

Finding the Fourth Proportional to 50,741.20, 76,111.80 and 13,805.20

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Solution

The fourth proportional to 50,741.20, 76,111.80 and 13,805.20 is: 20,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,741.20 : 76,111.80 = 13,805.20 : x
  2. Step 2: Convert to fraction form
    50,741.20/76,111.80 = 13,805.20/x
  3. Step 3: Cross multiply
    50,741.20x = 76,111.80 × 13,805.20
  4. Step 4: Simplify right side
    50,741.20x = 1,050,738,621.36
  5. Step 5: Solve for x
    x = 1,050,738,621.36/50,741.20
  6. Step 6: Final answer
    x = 20,707.80

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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.