Home / 50,721.40-76,082.10-47,999.80

Finding the Fourth Proportional to 50,721.40, 76,082.10 and 47,999.80

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Solution

The fourth proportional to 50,721.40, 76,082.10 and 47,999.80 is: 71,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,721.40 : 76,082.10 = 47,999.80 : x
  2. Step 2: Convert to fraction form
    50,721.40/76,082.10 = 47,999.80/x
  3. Step 3: Cross multiply
    50,721.40x = 76,082.10 × 47,999.80
  4. Step 4: Simplify right side
    50,721.40x = 3,651,925,583.58
  5. Step 5: Solve for x
    x = 3,651,925,583.58/50,721.40
  6. Step 6: Final answer
    x = 71,999.70

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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.