Home / 54,075.09-80,999.53-43,487.79

Finding the Fourth Proportional to 54,075.09, 80,999.53 and 43,487.79

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Solution

The fourth proportional to 54,075.09, 80,999.53 and 43,487.79 is: 65,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,075.09 : 80,999.53 = 43,487.79 : x
  2. Step 2: Convert to fraction form
    54,075.09/80,999.53 = 43,487.79/x
  3. Step 3: Cross multiply
    54,075.09x = 80,999.53 × 43,487.79
  4. Step 4: Simplify right side
    54,075.09x = 3,522,490,382.89
  5. Step 5: Solve for x
    x = 3,522,490,382.89/54,075.09
  6. Step 6: Final answer
    x = 65,140.72

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1.5x scale

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.