Home / 81,754.43-112,820.53-45,943.67

Finding the Fourth Proportional to 81,754.43, 112,820.53 and 45,943.67

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Solution

The fourth proportional to 81,754.43, 112,820.53 and 45,943.67 is: 63,401.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,754.43 : 112,820.53 = 45,943.67 : x
  2. Step 2: Convert to fraction form
    81,754.43/112,820.53 = 45,943.67/x
  3. Step 3: Cross multiply
    81,754.43x = 112,820.53 × 45,943.67
  4. Step 4: Simplify right side
    81,754.43x = 5,183,389,199.55
  5. Step 5: Solve for x
    x = 5,183,389,199.55/81,754.43
  6. Step 6: Final answer
    x = 63,401.94

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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.