Home / 85,320.54-127,926-35,435.04

Finding the Fourth Proportional to 85,320.54, 127,926 and 35,435.04

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Solution

The fourth proportional to 85,320.54, 127,926 and 35,435.04 is: 53,129.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,320.54 : 127,926 = 35,435.04 : x
  2. Step 2: Convert to fraction form
    85,320.54/127,926 = 35,435.04/x
  3. Step 3: Cross multiply
    85,320.54x = 127,926 × 35,435.04
  4. Step 4: Simplify right side
    85,320.54x = 4,533,062,927.04
  5. Step 5: Solve for x
    x = 4,533,062,927.04/85,320.54
  6. Step 6: Final answer
    x = 53,129.80

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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.