Home / 80,588.30-111,186.39-48,316.28

Finding the Fourth Proportional to 80,588.30, 111,186.39 and 48,316.28

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Solution

The fourth proportional to 80,588.30, 111,186.39 and 48,316.28 is: 66,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,588.30 : 111,186.39 = 48,316.28 : x
  2. Step 2: Convert to fraction form
    80,588.30/111,186.39 = 48,316.28/x
  3. Step 3: Cross multiply
    80,588.30x = 111,186.39 × 48,316.28
  4. Step 4: Simplify right side
    80,588.30x = 5,372,112,751.43
  5. Step 5: Solve for x
    x = 5,372,112,751.43/80,588.30
  6. Step 6: Final answer
    x = 66,661.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.