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Finding the Fourth Proportional to 73,810.50, 101,858.85 and 40,276.50

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Solution

The fourth proportional to 73,810.50, 101,858.85 and 40,276.50 is: 55,581.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,810.50 : 101,858.85 = 40,276.50 : x
  2. Step 2: Convert to fraction form
    73,810.50/101,858.85 = 40,276.50/x
  3. Step 3: Cross multiply
    73,810.50x = 101,858.85 × 40,276.50
  4. Step 4: Simplify right side
    73,810.50x = 4,102,517,972.03
  5. Step 5: Solve for x
    x = 4,102,517,972.03/73,810.50
  6. Step 6: Final answer
    x = 55,581.77

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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.