Home / 85,828.21-118,483.56-57,195.52

Finding the Fourth Proportional to 85,828.21, 118,483.56 and 57,195.52

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Solution

The fourth proportional to 85,828.21, 118,483.56 and 57,195.52 is: 78,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,828.21 : 118,483.56 = 57,195.52 : x
  2. Step 2: Convert to fraction form
    85,828.21/118,483.56 = 57,195.52/x
  3. Step 3: Cross multiply
    85,828.21x = 118,483.56 × 57,195.52
  4. Step 4: Simplify right side
    85,828.21x = 6,776,728,529.44
  5. Step 5: Solve for x
    x = 6,776,728,529.44/85,828.21
  6. Step 6: Final answer
    x = 78,956.89

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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.