Home / 77,015.49-106,277.57-43,017.21

Finding the Fourth Proportional to 77,015.49, 106,277.57 and 43,017.21

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Solution

The fourth proportional to 77,015.49, 106,277.57 and 43,017.21 is: 59,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,015.49 : 106,277.57 = 43,017.21 : x
  2. Step 2: Convert to fraction form
    77,015.49/106,277.57 = 43,017.21/x
  3. Step 3: Cross multiply
    77,015.49x = 106,277.57 × 43,017.21
  4. Step 4: Simplify right side
    77,015.49x = 4,571,764,654.52
  5. Step 5: Solve for x
    x = 4,571,764,654.52/77,015.49
  6. Step 6: Final answer
    x = 59,361.63

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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.