Home / 45,355.21-68,032.71-12,075.28

Finding the Fourth Proportional to 45,355.21, 68,032.71 and 12,075.28

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Solution

The fourth proportional to 45,355.21, 68,032.71 and 12,075.28 is: 18,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,355.21 : 68,032.71 = 12,075.28 : x
  2. Step 2: Convert to fraction form
    45,355.21/68,032.71 = 12,075.28/x
  3. Step 3: Cross multiply
    45,355.21x = 68,032.71 × 12,075.28
  4. Step 4: Simplify right side
    45,355.21x = 821,513,852.33
  5. Step 5: Solve for x
    x = 821,513,852.33/45,355.21
  6. Step 6: Final answer
    x = 18,112.89

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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.