Home / 54,459.90-81,738.45-47,072.70

Finding the Fourth Proportional to 54,459.90, 81,738.45 and 47,072.70

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Solution

The fourth proportional to 54,459.90, 81,738.45 and 47,072.70 is: 70,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,459.90 : 81,738.45 = 47,072.70 : x
  2. Step 2: Convert to fraction form
    54,459.90/81,738.45 = 47,072.70/x
  3. Step 3: Cross multiply
    54,459.90x = 81,738.45 × 47,072.70
  4. Step 4: Simplify right side
    54,459.90x = 3,847,649,535.32
  5. Step 5: Solve for x
    x = 3,847,649,535.32/54,459.90
  6. Step 6: Final answer
    x = 70,651.06

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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.