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Finding the Fourth Proportional to 81,571.41, 112,570.29 and 45,764.01

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Solution

The fourth proportional to 81,571.41, 112,570.29 and 45,764.01 is: 63,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,571.41 : 112,570.29 = 45,764.01 : x
  2. Step 2: Convert to fraction form
    81,571.41/112,570.29 = 45,764.01/x
  3. Step 3: Cross multiply
    81,571.41x = 112,570.29 × 45,764.01
  4. Step 4: Simplify right side
    81,571.41x = 5,151,667,877.26
  5. Step 5: Solve for x
    x = 5,151,667,877.26/81,571.41
  6. Step 6: Final answer
    x = 63,155.31

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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.