Home / 42,282.96-63,419.52-11,120.64

Finding the Fourth Proportional to 42,282.96, 63,419.52 and 11,120.64

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Solution

The fourth proportional to 42,282.96, 63,419.52 and 11,120.64 is: 16,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,282.96 : 63,419.52 = 11,120.64 : x
  2. Step 2: Convert to fraction form
    42,282.96/63,419.52 = 11,120.64/x
  3. Step 3: Cross multiply
    42,282.96x = 63,419.52 × 11,120.64
  4. Step 4: Simplify right side
    42,282.96x = 705,265,650.89
  5. Step 5: Solve for x
    x = 705,265,650.89/42,282.96
  6. Step 6: Final answer
    x = 16,679.67

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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.