Home / 48,075.12-72,109.44-20,373.12

Finding the Fourth Proportional to 48,075.12, 72,109.44 and 20,373.12

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Solution

The fourth proportional to 48,075.12, 72,109.44 and 20,373.12 is: 30,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,075.12 : 72,109.44 = 20,373.12 : x
  2. Step 2: Convert to fraction form
    48,075.12/72,109.44 = 20,373.12/x
  3. Step 3: Cross multiply
    48,075.12x = 72,109.44 × 20,373.12
  4. Step 4: Simplify right side
    48,075.12x = 1,469,094,274.25
  5. Step 5: Solve for x
    x = 1,469,094,274.25/48,075.12
  6. Step 6: Final answer
    x = 30,558.31

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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.