Home / 55,120.22-75,953.32-52,142.84

Finding the Fourth Proportional to 55,120.22, 75,953.32 and 52,142.84

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Solution

The fourth proportional to 55,120.22, 75,953.32 and 52,142.84 is: 71,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120.22 : 75,953.32 = 52,142.84 : x
  2. Step 2: Convert to fraction form
    55,120.22/75,953.32 = 52,142.84/x
  3. Step 3: Cross multiply
    55,120.22x = 75,953.32 × 52,142.84
  4. Step 4: Simplify right side
    55,120.22x = 3,960,421,812.23
  5. Step 5: Solve for x
    x = 3,960,421,812.23/55,120.22
  6. Step 6: Final answer
    x = 71,850.62

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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.