Home / 78,028.02-117,042.03-18,863.67

Finding the Fourth Proportional to 78,028.02, 117,042.03 and 18,863.67

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Solution

The fourth proportional to 78,028.02, 117,042.03 and 18,863.67 is: 28,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,028.02 : 117,042.03 = 18,863.67 : x
  2. Step 2: Convert to fraction form
    78,028.02/117,042.03 = 18,863.67/x
  3. Step 3: Cross multiply
    78,028.02x = 117,042.03 × 18,863.67
  4. Step 4: Simplify right side
    78,028.02x = 2,207,842,230.05
  5. Step 5: Solve for x
    x = 2,207,842,230.05/78,028.02
  6. Step 6: Final answer
    x = 28,295.51

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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.