Home / 77,419.05-106,839.45-43,435.05

Finding the Fourth Proportional to 77,419.05, 106,839.45 and 43,435.05

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Solution

The fourth proportional to 77,419.05, 106,839.45 and 43,435.05 is: 59,941.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,419.05 : 106,839.45 = 43,435.05 : x
  2. Step 2: Convert to fraction form
    77,419.05/106,839.45 = 43,435.05/x
  3. Step 3: Cross multiply
    77,419.05x = 106,839.45 × 43,435.05
  4. Step 4: Simplify right side
    77,419.05x = 4,640,576,852.72
  5. Step 5: Solve for x
    x = 4,640,576,852.72/77,419.05
  6. Step 6: Final answer
    x = 59,941.02

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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.