Home / 81,919.72-122,914.14-48,703.24

Finding the Fourth Proportional to 81,919.72, 122,914.14 and 48,703.24

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Solution

The fourth proportional to 81,919.72, 122,914.14 and 48,703.24 is: 73,075.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919.72 : 122,914.14 = 48,703.24 : x
  2. Step 2: Convert to fraction form
    81,919.72/122,914.14 = 48,703.24/x
  3. Step 3: Cross multiply
    81,919.72x = 122,914.14 × 48,703.24
  4. Step 4: Simplify right side
    81,919.72x = 5,986,316,859.81
  5. Step 5: Solve for x
    x = 5,986,316,859.81/81,919.72
  6. Step 6: Final answer
    x = 73,075.41

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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.