Home / 50,190.72-69,264-28,971.84

Finding the Fourth Proportional to 50,190.72, 69,264 and 28,971.84

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Solution

The fourth proportional to 50,190.72, 69,264 and 28,971.84 is: 39,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,190.72 : 69,264 = 28,971.84 : x
  2. Step 2: Convert to fraction form
    50,190.72/69,264 = 28,971.84/x
  3. Step 3: Cross multiply
    50,190.72x = 69,264 × 28,971.84
  4. Step 4: Simplify right side
    50,190.72x = 2,006,705,525.76
  5. Step 5: Solve for x
    x = 2,006,705,525.76/50,190.72
  6. Step 6: Final answer
    x = 39,981.60

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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.