Home / 81,471.15-122,243.18-37,075.05

Finding the Fourth Proportional to 81,471.15, 122,243.18 and 37,075.05

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Solution

The fourth proportional to 81,471.15, 122,243.18 and 37,075.05 is: 55,629.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,471.15 : 122,243.18 = 37,075.05 : x
  2. Step 2: Convert to fraction form
    81,471.15/122,243.18 = 37,075.05/x
  3. Step 3: Cross multiply
    81,471.15x = 122,243.18 × 37,075.05
  4. Step 4: Simplify right side
    81,471.15x = 4,532,171,825.28
  5. Step 5: Solve for x
    x = 4,532,171,825.28/81,471.15
  6. Step 6: Final answer
    x = 55,629.16

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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.