Home / 85,245.03-127,904.43-45,756.03

Finding the Fourth Proportional to 85,245.03, 127,904.43 and 45,756.03

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Solution

The fourth proportional to 85,245.03, 127,904.43 and 45,756.03 is: 68,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,245.03 : 127,904.43 = 45,756.03 : x
  2. Step 2: Convert to fraction form
    85,245.03/127,904.43 = 45,756.03/x
  3. Step 3: Cross multiply
    85,245.03x = 127,904.43 × 45,756.03
  4. Step 4: Simplify right side
    85,245.03x = 5,852,398,936.21
  5. Step 5: Solve for x
    x = 5,852,398,936.21/85,245.03
  6. Step 6: Final answer
    x = 68,653.84

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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.