Home / 81,584.19-112,586.06-45,777.53

Finding the Fourth Proportional to 81,584.19, 112,586.06 and 45,777.53

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Solution

The fourth proportional to 81,584.19, 112,586.06 and 45,777.53 is: 63,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,584.19 : 112,586.06 = 45,777.53 : x
  2. Step 2: Convert to fraction form
    81,584.19/112,586.06 = 45,777.53/x
  3. Step 3: Cross multiply
    81,584.19x = 112,586.06 × 45,777.53
  4. Step 4: Simplify right side
    81,584.19x = 5,153,910,947.41
  5. Step 5: Solve for x
    x = 5,153,910,947.41/81,584.19
  6. Step 6: Final answer
    x = 63,172.91

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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.