Home / 45,405.84-67,994.52-28,715.28

Finding the Fourth Proportional to 45,405.84, 67,994.52 and 28,715.28

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Solution

The fourth proportional to 45,405.84, 67,994.52 and 28,715.28 is: 43,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.84 : 67,994.52 = 28,715.28 : x
  2. Step 2: Convert to fraction form
    45,405.84/67,994.52 = 28,715.28/x
  3. Step 3: Cross multiply
    45,405.84x = 67,994.52 × 28,715.28
  4. Step 4: Simplify right side
    45,405.84x = 1,952,481,680.27
  5. Step 5: Solve for x
    x = 1,952,481,680.27/45,405.84
  6. Step 6: Final answer
    x = 43,000.67

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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.