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Finding the Fourth Proportional to 105,504.53, 145,599.53 and 57,762.32

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Solution

The fourth proportional to 105,504.53, 145,599.53 and 57,762.32 is: 79,713.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,504.53 : 145,599.53 = 57,762.32 : x
  2. Step 2: Convert to fraction form
    105,504.53/145,599.53 = 57,762.32/x
  3. Step 3: Cross multiply
    105,504.53x = 145,599.53 × 57,762.32
  4. Step 4: Simplify right side
    105,504.53x = 8,410,165,626.90
  5. Step 5: Solve for x
    x = 8,410,165,626.90/105,504.53
  6. Step 6: Final answer
    x = 79,713.79

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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.