Home / 78,626.16-117,670.32-61,175.52

Finding the Fourth Proportional to 78,626.16, 117,670.32 and 61,175.52

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Solution

The fourth proportional to 78,626.16, 117,670.32 and 61,175.52 is: 91,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,626.16 : 117,670.32 = 61,175.52 : x
  2. Step 2: Convert to fraction form
    78,626.16/117,670.32 = 61,175.52/x
  3. Step 3: Cross multiply
    78,626.16x = 117,670.32 × 61,175.52
  4. Step 4: Simplify right side
    78,626.16x = 7,198,543,014.57
  5. Step 5: Solve for x
    x = 7,198,543,014.57/78,626.16
  6. Step 6: Final answer
    x = 91,554.05

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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.