Home / 86,603.38-129,908.84-27,443.41

Finding the Fourth Proportional to 86,603.38, 129,908.84 and 27,443.41

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Solution

The fourth proportional to 86,603.38, 129,908.84 and 27,443.41 is: 41,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,603.38 : 129,908.84 = 27,443.41 : x
  2. Step 2: Convert to fraction form
    86,603.38/129,908.84 = 27,443.41/x
  3. Step 3: Cross multiply
    86,603.38x = 129,908.84 × 27,443.41
  4. Step 4: Simplify right side
    86,603.38x = 3,565,141,558.74
  5. Step 5: Solve for x
    x = 3,565,141,558.74/86,603.38
  6. Step 6: Final answer
    x = 41,166.31

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1.5x scale

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.