Home / 81,025.40-111,820.68-45,222.39

Finding the Fourth Proportional to 81,025.40, 111,820.68 and 45,222.39

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Solution

The fourth proportional to 81,025.40, 111,820.68 and 45,222.39 is: 62,410.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,025.40 : 111,820.68 = 45,222.39 : x
  2. Step 2: Convert to fraction form
    81,025.40/111,820.68 = 45,222.39/x
  3. Step 3: Cross multiply
    81,025.40x = 111,820.68 × 45,222.39
  4. Step 4: Simplify right side
    81,025.40x = 5,056,798,401.03
  5. Step 5: Solve for x
    x = 5,056,798,401.03/81,025.40
  6. Step 6: Final answer
    x = 62,410.04

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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.