Home / 77,643.15-107,136.84-45,370.02

Finding the Fourth Proportional to 77,643.15, 107,136.84 and 45,370.02

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Solution

The fourth proportional to 77,643.15, 107,136.84 and 45,370.02 is: 62,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,643.15 : 107,136.84 = 45,370.02 : x
  2. Step 2: Convert to fraction form
    77,643.15/107,136.84 = 45,370.02/x
  3. Step 3: Cross multiply
    77,643.15x = 107,136.84 × 45,370.02
  4. Step 4: Simplify right side
    77,643.15x = 4,860,800,573.54
  5. Step 5: Solve for x
    x = 4,860,800,573.54/77,643.15
  6. Step 6: Final answer
    x = 62,604.37

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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.