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Finding the Fourth Proportional to 65,575.76, 98,362.72 and 18,828.62

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Solution

The fourth proportional to 65,575.76, 98,362.72 and 18,828.62 is: 28,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,575.76 : 98,362.72 = 18,828.62 : x
  2. Step 2: Convert to fraction form
    65,575.76/98,362.72 = 18,828.62/x
  3. Step 3: Cross multiply
    65,575.76x = 98,362.72 × 18,828.62
  4. Step 4: Simplify right side
    65,575.76x = 1,852,034,277.05
  5. Step 5: Solve for x
    x = 1,852,034,277.05/65,575.76
  6. Step 6: Final answer
    x = 28,242.67

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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.