Home / 86,623.19-119,540-46,879.19

Finding the Fourth Proportional to 86,623.19, 119,540 and 46,879.19

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Solution

The fourth proportional to 86,623.19, 119,540 and 46,879.19 is: 64,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,623.19 : 119,540 = 46,879.19 : x
  2. Step 2: Convert to fraction form
    86,623.19/119,540 = 46,879.19/x
  3. Step 3: Cross multiply
    86,623.19x = 119,540 × 46,879.19
  4. Step 4: Simplify right side
    86,623.19x = 5,603,938,372.60
  5. Step 5: Solve for x
    x = 5,603,938,372.60/86,623.19
  6. Step 6: Final answer
    x = 64,693.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.