Home / 88,911.33-122,705.81-53,100.57

Finding the Fourth Proportional to 88,911.33, 122,705.81 and 53,100.57

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Solution

The fourth proportional to 88,911.33, 122,705.81 and 53,100.57 is: 73,283.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,911.33 : 122,705.81 = 53,100.57 : x
  2. Step 2: Convert to fraction form
    88,911.33/122,705.81 = 53,100.57/x
  3. Step 3: Cross multiply
    88,911.33x = 122,705.81 × 53,100.57
  4. Step 4: Simplify right side
    88,911.33x = 6,515,748,586.06
  5. Step 5: Solve for x
    x = 6,515,748,586.06/88,911.33
  6. Step 6: Final answer
    x = 73,283.67

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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.