Home / 45,130.97-67,735.34-21,777.05

Finding the Fourth Proportional to 45,130.97, 67,735.34 and 21,777.05

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Solution

The fourth proportional to 45,130.97, 67,735.34 and 21,777.05 is: 32,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130.97 : 67,735.34 = 21,777.05 : x
  2. Step 2: Convert to fraction form
    45,130.97/67,735.34 = 21,777.05/x
  3. Step 3: Cross multiply
    45,130.97x = 67,735.34 × 21,777.05
  4. Step 4: Simplify right side
    45,130.97x = 1,475,075,777.06
  5. Step 5: Solve for x
    x = 1,475,075,777.06/45,130.97
  6. Step 6: Final answer
    x = 32,684.34

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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.