Home / 50,761.72-70,051.26-28,405.72

Finding the Fourth Proportional to 50,761.72, 70,051.26 and 28,405.72

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Solution

The fourth proportional to 50,761.72, 70,051.26 and 28,405.72 is: 39,199.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,761.72 : 70,051.26 = 28,405.72 : x
  2. Step 2: Convert to fraction form
    50,761.72/70,051.26 = 28,405.72/x
  3. Step 3: Cross multiply
    50,761.72x = 70,051.26 × 28,405.72
  4. Step 4: Simplify right side
    50,761.72x = 1,989,856,477.21
  5. Step 5: Solve for x
    x = 1,989,856,477.21/50,761.72
  6. Step 6: Final answer
    x = 39,199.94

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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.