Home / 43,377.06-65,075.16-18,438.42

Finding the Fourth Proportional to 43,377.06, 65,075.16 and 18,438.42

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Solution

The fourth proportional to 43,377.06, 65,075.16 and 18,438.42 is: 27,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,377.06 : 65,075.16 = 18,438.42 : x
  2. Step 2: Convert to fraction form
    43,377.06/65,075.16 = 18,438.42/x
  3. Step 3: Cross multiply
    43,377.06x = 65,075.16 × 18,438.42
  4. Step 4: Simplify right side
    43,377.06x = 1,199,883,131.65
  5. Step 5: Solve for x
    x = 1,199,883,131.65/43,377.06
  6. Step 6: Final answer
    x = 27,661.70

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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.