Home / 45,424.80-68,139.93-19,131.59

Finding the Fourth Proportional to 45,424.80, 68,139.93 and 19,131.59

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Solution

The fourth proportional to 45,424.80, 68,139.93 and 19,131.59 is: 28,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,424.80 : 68,139.93 = 19,131.59 : x
  2. Step 2: Convert to fraction form
    45,424.80/68,139.93 = 19,131.59/x
  3. Step 3: Cross multiply
    45,424.80x = 68,139.93 × 19,131.59
  4. Step 4: Simplify right side
    45,424.80x = 1,303,624,767.03
  5. Step 5: Solve for x
    x = 1,303,624,767.03/45,424.80
  6. Step 6: Final answer
    x = 28,698.53

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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.