Home / 74,263.42-111,401.68-20,955.87

Finding the Fourth Proportional to 74,263.42, 111,401.68 and 20,955.87

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Solution

The fourth proportional to 74,263.42, 111,401.68 and 20,955.87 is: 31,435.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,263.42 : 111,401.68 = 20,955.87 : x
  2. Step 2: Convert to fraction form
    74,263.42/111,401.68 = 20,955.87/x
  3. Step 3: Cross multiply
    74,263.42x = 111,401.68 × 20,955.87
  4. Step 4: Simplify right side
    74,263.42x = 2,334,518,619.24
  5. Step 5: Solve for x
    x = 2,334,518,619.24/74,263.42
  6. Step 6: Final answer
    x = 31,435.65

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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.