Home / 45,102.42-67,653.60-28,487.70

Finding the Fourth Proportional to 45,102.42, 67,653.60 and 28,487.70

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Solution

The fourth proportional to 45,102.42, 67,653.60 and 28,487.70 is: 42,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,102.42 : 67,653.60 = 28,487.70 : x
  2. Step 2: Convert to fraction form
    45,102.42/67,653.60 = 28,487.70/x
  3. Step 3: Cross multiply
    45,102.42x = 67,653.60 × 28,487.70
  4. Step 4: Simplify right side
    45,102.42x = 1,927,295,460.72
  5. Step 5: Solve for x
    x = 1,927,295,460.72/45,102.42
  6. Step 6: Final answer
    x = 42,731.53

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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.