Home / 81,074.40-111,880.84-45,267.80

Finding the Fourth Proportional to 81,074.40, 111,880.84 and 45,267.80

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Solution

The fourth proportional to 81,074.40, 111,880.84 and 45,267.80 is: 62,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.40 : 111,880.84 = 45,267.80 : x
  2. Step 2: Convert to fraction form
    81,074.40/111,880.84 = 45,267.80/x
  3. Step 3: Cross multiply
    81,074.40x = 111,880.84 × 45,267.80
  4. Step 4: Simplify right side
    81,074.40x = 5,064,599,488.95
  5. Step 5: Solve for x
    x = 5,064,599,488.95/81,074.40
  6. Step 6: Final answer
    x = 62,468.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.