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Finding the Fourth Proportional to 81,794.50, 112,875.33 and 45,495.70

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Solution

The fourth proportional to 81,794.50, 112,875.33 and 45,495.70 is: 62,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,794.50 : 112,875.33 = 45,495.70 : x
  2. Step 2: Convert to fraction form
    81,794.50/112,875.33 = 45,495.70/x
  3. Step 3: Cross multiply
    81,794.50x = 112,875.33 × 45,495.70
  4. Step 4: Simplify right side
    81,794.50x = 5,135,342,151.08
  5. Step 5: Solve for x
    x = 5,135,342,151.08/81,794.50
  6. Step 6: Final answer
    x = 62,783.47

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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.