Home / 85,699.95-118,306.31-57,067.26

Finding the Fourth Proportional to 85,699.95, 118,306.31 and 57,067.26

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Solution

The fourth proportional to 85,699.95, 118,306.31 and 57,067.26 is: 78,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699.95 : 118,306.31 = 57,067.26 : x
  2. Step 2: Convert to fraction form
    85,699.95/118,306.31 = 57,067.26/x
  3. Step 3: Cross multiply
    85,699.95x = 118,306.31 × 57,067.26
  4. Step 4: Simplify right side
    85,699.95x = 6,751,416,952.41
  5. Step 5: Solve for x
    x = 6,751,416,952.41/85,699.95
  6. Step 6: Final answer
    x = 78,779.71

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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.