Home / 74,990.46-103,571.91-51,075.66

Finding the Fourth Proportional to 74,990.46, 103,571.91 and 51,075.66

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Solution

The fourth proportional to 74,990.46, 103,571.91 and 51,075.66 is: 70,542.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,990.46 : 103,571.91 = 51,075.66 : x
  2. Step 2: Convert to fraction form
    74,990.46/103,571.91 = 51,075.66/x
  3. Step 3: Cross multiply
    74,990.46x = 103,571.91 × 51,075.66
  4. Step 4: Simplify right side
    74,990.46x = 5,290,003,660.71
  5. Step 5: Solve for x
    x = 5,290,003,660.71/74,990.46
  6. Step 6: Final answer
    x = 70,542.36

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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.