Home / 86,705.25-130,084.10-61,453.61

Finding the Fourth Proportional to 86,705.25, 130,084.10 and 61,453.61

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Solution

The fourth proportional to 86,705.25, 130,084.10 and 61,453.61 is: 92,198.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,705.25 : 130,084.10 = 61,453.61 : x
  2. Step 2: Convert to fraction form
    86,705.25/130,084.10 = 61,453.61/x
  3. Step 3: Cross multiply
    86,705.25x = 130,084.10 × 61,453.61
  4. Step 4: Simplify right side
    86,705.25x = 7,994,136,590.91
  5. Step 5: Solve for x
    x = 7,994,136,590.91/86,705.25
  6. Step 6: Final answer
    x = 92,198.99

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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.