Home / 49,976.45-74,964.66-13,040.45

Finding the Fourth Proportional to 49,976.45, 74,964.66 and 13,040.45

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Solution

The fourth proportional to 49,976.45, 74,964.66 and 13,040.45 is: 19,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,976.45 : 74,964.66 = 13,040.45 : x
  2. Step 2: Convert to fraction form
    49,976.45/74,964.66 = 13,040.45/x
  3. Step 3: Cross multiply
    49,976.45x = 74,964.66 × 13,040.45
  4. Step 4: Simplify right side
    49,976.45x = 977,572,525.67
  5. Step 5: Solve for x
    x = 977,572,525.67/49,976.45
  6. Step 6: Final answer
    x = 19,560.67

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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.