Home / 78,872.36-117,949.18-58,895.88

Finding the Fourth Proportional to 78,872.36, 117,949.18 and 58,895.88

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Solution

The fourth proportional to 78,872.36, 117,949.18 and 58,895.88 is: 88,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,872.36 : 117,949.18 = 58,895.88 : x
  2. Step 2: Convert to fraction form
    78,872.36/117,949.18 = 58,895.88/x
  3. Step 3: Cross multiply
    78,872.36x = 117,949.18 × 58,895.88
  4. Step 4: Simplify right side
    78,872.36x = 6,946,720,751.38
  5. Step 5: Solve for x
    x = 6,946,720,751.38/78,872.36
  6. Step 6: Final answer
    x = 88,075.48

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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.