Home / 45,356.10-68,048.50-20,398.33

Finding the Fourth Proportional to 45,356.10, 68,048.50 and 20,398.33

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Solution

The fourth proportional to 45,356.10, 68,048.50 and 20,398.33 is: 30,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,356.10 : 68,048.50 = 20,398.33 : x
  2. Step 2: Convert to fraction form
    45,356.10/68,048.50 = 20,398.33/x
  3. Step 3: Cross multiply
    45,356.10x = 68,048.50 × 20,398.33
  4. Step 4: Simplify right side
    45,356.10x = 1,388,075,639.93
  5. Step 5: Solve for x
    x = 1,388,075,639.93/45,356.10
  6. Step 6: Final answer
    x = 30,603.95

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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.