Home / 85,717.59-118,294.55-51,725.51

Finding the Fourth Proportional to 85,717.59, 118,294.55 and 51,725.51

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Solution

The fourth proportional to 85,717.59, 118,294.55 and 51,725.51 is: 71,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,717.59 : 118,294.55 = 51,725.51 : x
  2. Step 2: Convert to fraction form
    85,717.59/118,294.55 = 51,725.51/x
  3. Step 3: Cross multiply
    85,717.59x = 118,294.55 × 51,725.51
  4. Step 4: Simplify right side
    85,717.59x = 6,118,845,867.30
  5. Step 5: Solve for x
    x = 6,118,845,867.30/85,717.59
  6. Step 6: Final answer
    x = 71,383.79

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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.