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Finding the Fourth Proportional to 81,075.52, 111,902.88 and 47,552.32

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Solution

The fourth proportional to 81,075.52, 111,902.88 and 47,552.32 is: 65,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,075.52 : 111,902.88 = 47,552.32 : x
  2. Step 2: Convert to fraction form
    81,075.52/111,902.88 = 47,552.32/x
  3. Step 3: Cross multiply
    81,075.52x = 111,902.88 × 47,552.32
  4. Step 4: Simplify right side
    81,075.52x = 5,321,241,558.68
  5. Step 5: Solve for x
    x = 5,321,241,558.68/81,075.52
  6. Step 6: Final answer
    x = 65,633.15

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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.