Home / 85,891.08-118,502.28-51,912.39

Finding the Fourth Proportional to 85,891.08, 118,502.28 and 51,912.39

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Solution

The fourth proportional to 85,891.08, 118,502.28 and 51,912.39 is: 71,622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,891.08 : 118,502.28 = 51,912.39 : x
  2. Step 2: Convert to fraction form
    85,891.08/118,502.28 = 51,912.39/x
  3. Step 3: Cross multiply
    85,891.08x = 118,502.28 × 51,912.39
  4. Step 4: Simplify right side
    85,891.08x = 6,151,736,575.25
  5. Step 5: Solve for x
    x = 6,151,736,575.25/85,891.08
  6. Step 6: Final answer
    x = 71,622.53

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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.