Home / 67,640.40-93,380.96-50,638.48

Finding the Fourth Proportional to 67,640.40, 93,380.96 and 50,638.48

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Solution

The fourth proportional to 67,640.40, 93,380.96 and 50,638.48 is: 69,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,640.40 : 93,380.96 = 50,638.48 : x
  2. Step 2: Convert to fraction form
    67,640.40/93,380.96 = 50,638.48/x
  3. Step 3: Cross multiply
    67,640.40x = 93,380.96 × 50,638.48
  4. Step 4: Simplify right side
    67,640.40x = 4,728,669,875.34
  5. Step 5: Solve for x
    x = 4,728,669,875.34/67,640.40
  6. Step 6: Final answer
    x = 69,908.96

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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.