Home / 86,861.16-119,868.85-49,134.60

Finding the Fourth Proportional to 86,861.16, 119,868.85 and 49,134.60

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Solution

The fourth proportional to 86,861.16, 119,868.85 and 49,134.60 is: 67,806.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.16 : 119,868.85 = 49,134.60 : x
  2. Step 2: Convert to fraction form
    86,861.16/119,868.85 = 49,134.60/x
  3. Step 3: Cross multiply
    86,861.16x = 119,868.85 × 49,134.60
  4. Step 4: Simplify right side
    86,861.16x = 5,889,707,397.87
  5. Step 5: Solve for x
    x = 5,889,707,397.87/86,861.16
  6. Step 6: Final answer
    x = 67,806.00

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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.