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Finding the Fourth Proportional to 45,803.99, 68,694.93 and 19,135.57

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Solution

The fourth proportional to 45,803.99, 68,694.93 and 19,135.57 is: 28,698.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,803.99 : 68,694.93 = 19,135.57 : x
  2. Step 2: Convert to fraction form
    45,803.99/68,694.93 = 19,135.57/x
  3. Step 3: Cross multiply
    45,803.99x = 68,694.93 × 19,135.57
  4. Step 4: Simplify right side
    45,803.99x = 1,314,516,641.66
  5. Step 5: Solve for x
    x = 1,314,516,641.66/45,803.99
  6. Step 6: Final answer
    x = 28,698.74

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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.