Home / 81,552.81-122,189.73-63,776.67

Finding the Fourth Proportional to 81,552.81, 122,189.73 and 63,776.67

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Solution

The fourth proportional to 81,552.81, 122,189.73 and 63,776.67 is: 95,555.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,552.81 : 122,189.73 = 63,776.67 : x
  2. Step 2: Convert to fraction form
    81,552.81/122,189.73 = 63,776.67/x
  3. Step 3: Cross multiply
    81,552.81x = 122,189.73 × 63,776.67
  4. Step 4: Simplify right side
    81,552.81x = 7,792,854,087.60
  5. Step 5: Solve for x
    x = 7,792,854,087.60/81,552.81
  6. Step 6: Final answer
    x = 95,555.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.