Home / 76,718.65-115,075.25-23,408.47

Finding the Fourth Proportional to 76,718.65, 115,075.25 and 23,408.47

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Solution

The fourth proportional to 76,718.65, 115,075.25 and 23,408.47 is: 35,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,718.65 : 115,075.25 = 23,408.47 : x
  2. Step 2: Convert to fraction form
    76,718.65/115,075.25 = 23,408.47/x
  3. Step 3: Cross multiply
    76,718.65x = 115,075.25 × 23,408.47
  4. Step 4: Simplify right side
    76,718.65x = 2,693,735,537.37
  5. Step 5: Solve for x
    x = 2,693,735,537.37/76,718.65
  6. Step 6: Final answer
    x = 35,111.87

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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.