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Finding the Fourth Proportional to 64,778.94, 97,015.32 and 50,639.99

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Solution

The fourth proportional to 64,778.94, 97,015.32 and 50,639.99 is: 75,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,778.94 : 97,015.32 = 50,639.99 : x
  2. Step 2: Convert to fraction form
    64,778.94/97,015.32 = 50,639.99/x
  3. Step 3: Cross multiply
    64,778.94x = 97,015.32 × 50,639.99
  4. Step 4: Simplify right side
    64,778.94x = 4,912,854,349.57
  5. Step 5: Solve for x
    x = 4,912,854,349.57/64,778.94
  6. Step 6: Final answer
    x = 75,840.30

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1.5x scale

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.