Home / 85,270.05-127,850.38-35,384.58

Finding the Fourth Proportional to 85,270.05, 127,850.38 and 35,384.58

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Solution

The fourth proportional to 85,270.05, 127,850.38 and 35,384.58 is: 53,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,270.05 : 127,850.38 = 35,384.58 : x
  2. Step 2: Convert to fraction form
    85,270.05/127,850.38 = 35,384.58/x
  3. Step 3: Cross multiply
    85,270.05x = 127,850.38 × 35,384.58
  4. Step 4: Simplify right side
    85,270.05x = 4,523,931,910.68
  5. Step 5: Solve for x
    x = 4,523,931,910.68/85,270.05
  6. Step 6: Final answer
    x = 53,054.17

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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.