Home / 86,812.72-119,802.12-50,535.76

Finding the Fourth Proportional to 86,812.72, 119,802.12 and 50,535.76

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Solution

The fourth proportional to 86,812.72, 119,802.12 and 50,535.76 is: 69,739.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,812.72 : 119,802.12 = 50,535.76 : x
  2. Step 2: Convert to fraction form
    86,812.72/119,802.12 = 50,535.76/x
  3. Step 3: Cross multiply
    86,812.72x = 119,802.12 × 50,535.76
  4. Step 4: Simplify right side
    86,812.72x = 6,054,291,183.81
  5. Step 5: Solve for x
    x = 6,054,291,183.81/86,812.72
  6. Step 6: Final answer
    x = 69,739.68

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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.