Home / 81,357.04-122,047.15-25,201.56

Finding the Fourth Proportional to 81,357.04, 122,047.15 and 25,201.56

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Solution

The fourth proportional to 81,357.04, 122,047.15 and 25,201.56 is: 37,805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,357.04 : 122,047.15 = 25,201.56 : x
  2. Step 2: Convert to fraction form
    81,357.04/122,047.15 = 25,201.56/x
  3. Step 3: Cross multiply
    81,357.04x = 122,047.15 × 25,201.56
  4. Step 4: Simplify right side
    81,357.04x = 3,075,778,573.55
  5. Step 5: Solve for x
    x = 3,075,778,573.55/81,357.04
  6. Step 6: Final answer
    x = 37,805.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.