Home / 86,728.30-119,641.21-58,049.16

Finding the Fourth Proportional to 86,728.30, 119,641.21 and 58,049.16

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Solution

The fourth proportional to 86,728.30, 119,641.21 and 58,049.16 is: 80,078.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,728.30 : 119,641.21 = 58,049.16 : x
  2. Step 2: Convert to fraction form
    86,728.30/119,641.21 = 58,049.16/x
  3. Step 3: Cross multiply
    86,728.30x = 119,641.21 × 58,049.16
  4. Step 4: Simplify right side
    86,728.30x = 6,945,071,741.88
  5. Step 5: Solve for x
    x = 6,945,071,741.88/86,728.30
  6. Step 6: Final answer
    x = 80,078.50

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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.