Home / 81,343.23-122,011.24-22,178.90

Finding the Fourth Proportional to 81,343.23, 122,011.24 and 22,178.90

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Solution

The fourth proportional to 81,343.23, 122,011.24 and 22,178.90 is: 33,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,343.23 : 122,011.24 = 22,178.90 : x
  2. Step 2: Convert to fraction form
    81,343.23/122,011.24 = 22,178.90/x
  3. Step 3: Cross multiply
    81,343.23x = 122,011.24 × 22,178.90
  4. Step 4: Simplify right side
    81,343.23x = 2,706,075,090.84
  5. Step 5: Solve for x
    x = 2,706,075,090.84/81,343.23
  6. Step 6: Final answer
    x = 33,267.37

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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.