Home / 43,389.95-65,121.77-30,940.45

Finding the Fourth Proportional to 43,389.95, 65,121.77 and 30,940.45

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Solution

The fourth proportional to 43,389.95, 65,121.77 and 30,940.45 is: 46,436.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,389.95 : 65,121.77 = 30,940.45 : x
  2. Step 2: Convert to fraction form
    43,389.95/65,121.77 = 30,940.45/x
  3. Step 3: Cross multiply
    43,389.95x = 65,121.77 × 30,940.45
  4. Step 4: Simplify right side
    43,389.95x = 2,014,896,783.14
  5. Step 5: Solve for x
    x = 2,014,896,783.14/43,389.95
  6. Step 6: Final answer
    x = 46,436.95

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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.