Home / 86,551.11-119,365.74-56,325.54

Finding the Fourth Proportional to 86,551.11, 119,365.74 and 56,325.54

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Solution

The fourth proportional to 86,551.11, 119,365.74 and 56,325.54 is: 77,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,551.11 : 119,365.74 = 56,325.54 : x
  2. Step 2: Convert to fraction form
    86,551.11/119,365.74 = 56,325.54/x
  3. Step 3: Cross multiply
    86,551.11x = 119,365.74 × 56,325.54
  4. Step 4: Simplify right side
    86,551.11x = 6,723,339,763.00
  5. Step 5: Solve for x
    x = 6,723,339,763.00/86,551.11
  6. Step 6: Final answer
    x = 77,680.57

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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.