Home / 45,420.98-68,131.67-15,838.79

Finding the Fourth Proportional to 45,420.98, 68,131.67 and 15,838.79

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Solution

The fourth proportional to 45,420.98, 68,131.67 and 15,838.79 is: 23,758.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.98 : 68,131.67 = 15,838.79 : x
  2. Step 2: Convert to fraction form
    45,420.98/68,131.67 = 15,838.79/x
  3. Step 3: Cross multiply
    45,420.98x = 68,131.67 × 15,838.79
  4. Step 4: Simplify right side
    45,420.98x = 1,079,122,793.63
  5. Step 5: Solve for x
    x = 1,079,122,793.63/45,420.98
  6. Step 6: Final answer
    x = 23,758.25

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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.