Home / 77,439.45-106,903.99-51,936.50

Finding the Fourth Proportional to 77,439.45, 106,903.99 and 51,936.50

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Solution

The fourth proportional to 77,439.45, 106,903.99 and 51,936.50 is: 71,697.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,439.45 : 106,903.99 = 51,936.50 : x
  2. Step 2: Convert to fraction form
    77,439.45/106,903.99 = 51,936.50/x
  3. Step 3: Cross multiply
    77,439.45x = 106,903.99 × 51,936.50
  4. Step 4: Simplify right side
    77,439.45x = 5,552,219,408.82
  5. Step 5: Solve for x
    x = 5,552,219,408.82/77,439.45
  6. Step 6: Final answer
    x = 71,697.55

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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.