Home / 45,225.32-67,824.16-31,275

Finding the Fourth Proportional to 45,225.32, 67,824.16 and 31,275

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Solution

The fourth proportional to 45,225.32, 67,824.16 and 31,275 is: 46,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,225.32 : 67,824.16 = 31,275 : x
  2. Step 2: Convert to fraction form
    45,225.32/67,824.16 = 31,275/x
  3. Step 3: Cross multiply
    45,225.32x = 67,824.16 × 31,275
  4. Step 4: Simplify right side
    45,225.32x = 2,121,200,604
  5. Step 5: Solve for x
    x = 2,121,200,604/45,225.32
  6. Step 6: Final answer
    x = 46,902.94

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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.