Home / 86,443.78-129,634.50-36,527.74

Finding the Fourth Proportional to 86,443.78, 129,634.50 and 36,527.74

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Solution

The fourth proportional to 86,443.78, 129,634.50 and 36,527.74 is: 54,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,443.78 : 129,634.50 = 36,527.74 : x
  2. Step 2: Convert to fraction form
    86,443.78/129,634.50 = 36,527.74/x
  3. Step 3: Cross multiply
    86,443.78x = 129,634.50 × 36,527.74
  4. Step 4: Simplify right side
    86,443.78x = 4,735,255,647.65
  5. Step 5: Solve for x
    x = 4,735,255,647.65/86,443.78
  6. Step 6: Final answer
    x = 54,778.44

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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.