Home / 48,128.49-72,144.26-20,064.08

Finding the Fourth Proportional to 48,128.49, 72,144.26 and 20,064.08

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Solution

The fourth proportional to 48,128.49, 72,144.26 and 20,064.08 is: 30,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,128.49 : 72,144.26 = 20,064.08 : x
  2. Step 2: Convert to fraction form
    48,128.49/72,144.26 = 20,064.08/x
  3. Step 3: Cross multiply
    48,128.49x = 72,144.26 × 20,064.08
  4. Step 4: Simplify right side
    48,128.49x = 1,447,507,743.14
  5. Step 5: Solve for x
    x = 1,447,507,743.14/48,128.49
  6. Step 6: Final answer
    x = 30,075.90

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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.