Home / 92,891.72-128,190.80-50,449.34

Finding the Fourth Proportional to 92,891.72, 128,190.80 and 50,449.34

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Solution

The fourth proportional to 92,891.72, 128,190.80 and 50,449.34 is: 69,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,891.72 : 128,190.80 = 50,449.34 : x
  2. Step 2: Convert to fraction form
    92,891.72/128,190.80 = 50,449.34/x
  3. Step 3: Cross multiply
    92,891.72x = 128,190.80 × 50,449.34
  4. Step 4: Simplify right side
    92,891.72x = 6,467,141,254.07
  5. Step 5: Solve for x
    x = 6,467,141,254.07/92,891.72
  6. Step 6: Final answer
    x = 69,620.21

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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.