Home / 81,269,892.96-121,905,075.92-34,571,347.13

Finding the Fourth Proportional to 81,269,892.96, 121,905,075.92 and 34,571,347.13

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Solution

The fourth proportional to 81,269,892.96, 121,905,075.92 and 34,571,347.13 is: 51,857,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269,892.96 : 121,905,075.92 = 34,571,347.13 : x
  2. Step 2: Convert to fraction form
    81,269,892.96/121,905,075.92 = 34,571,347.13/x
  3. Step 3: Cross multiply
    81,269,892.96x = 121,905,075.92 × 34,571,347.13
  4. Step 4: Simplify right side
    81,269,892.96x = 4,214,422,695,756,942
  5. Step 5: Solve for x
    x = 4,214,422,695,756,942/81,269,892.96
  6. Step 6: Final answer
    x = 51,857,121.28

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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.