Home / 85,843.36-118,530.96-55,643.04

Finding the Fourth Proportional to 85,843.36, 118,530.96 and 55,643.04

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Solution

The fourth proportional to 85,843.36, 118,530.96 and 55,643.04 is: 76,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,843.36 : 118,530.96 = 55,643.04 : x
  2. Step 2: Convert to fraction form
    85,843.36/118,530.96 = 55,643.04/x
  3. Step 3: Cross multiply
    85,843.36x = 118,530.96 × 55,643.04
  4. Step 4: Simplify right side
    85,843.36x = 6,595,422,948.52
  5. Step 5: Solve for x
    x = 6,595,422,948.52/85,843.36
  6. Step 6: Final answer
    x = 76,830.90

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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.