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Finding the Fourth Proportional to 81,580.94, 112,583.44 and 45,773.54

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Solution

The fourth proportional to 81,580.94, 112,583.44 and 45,773.54 is: 63,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,580.94 : 112,583.44 = 45,773.54 : x
  2. Step 2: Convert to fraction form
    81,580.94/112,583.44 = 45,773.54/x
  3. Step 3: Cross multiply
    81,580.94x = 112,583.44 × 45,773.54
  4. Step 4: Simplify right side
    81,580.94x = 5,153,342,594.18
  5. Step 5: Solve for x
    x = 5,153,342,594.18/81,580.94
  6. Step 6: Final answer
    x = 63,168.46

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1.5x scale

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.