Home / 50,345.19-69,406.86-40,170.78

Finding the Fourth Proportional to 50,345.19, 69,406.86 and 40,170.78

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Solution

The fourth proportional to 50,345.19, 69,406.86 and 40,170.78 is: 55,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,345.19 : 69,406.86 = 40,170.78 : x
  2. Step 2: Convert to fraction form
    50,345.19/69,406.86 = 40,170.78/x
  3. Step 3: Cross multiply
    50,345.19x = 69,406.86 × 40,170.78
  4. Step 4: Simplify right side
    50,345.19x = 2,788,127,703.55
  5. Step 5: Solve for x
    x = 2,788,127,703.55/50,345.19
  6. Step 6: Final answer
    x = 55,380.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.