Home / 80,828.18-111,546.35-45,018.20

Finding the Fourth Proportional to 80,828.18, 111,546.35 and 45,018.20

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Solution

The fourth proportional to 80,828.18, 111,546.35 and 45,018.20 is: 62,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,828.18 : 111,546.35 = 45,018.20 : x
  2. Step 2: Convert to fraction form
    80,828.18/111,546.35 = 45,018.20/x
  3. Step 3: Cross multiply
    80,828.18x = 111,546.35 × 45,018.20
  4. Step 4: Simplify right side
    80,828.18x = 5,021,615,893.57
  5. Step 5: Solve for x
    x = 5,021,615,893.57/80,828.18
  6. Step 6: Final answer
    x = 62,127.04

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1.5x scale

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.