Home / 85,717.56-118,301.58-51,745.32

Finding the Fourth Proportional to 85,717.56, 118,301.58 and 51,745.32

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Solution

The fourth proportional to 85,717.56, 118,301.58 and 51,745.32 is: 71,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,717.56 : 118,301.58 = 51,745.32 : x
  2. Step 2: Convert to fraction form
    85,717.56/118,301.58 = 51,745.32/x
  3. Step 3: Cross multiply
    85,717.56x = 118,301.58 × 51,745.32
  4. Step 4: Simplify right side
    85,717.56x = 6,121,553,113.61
  5. Step 5: Solve for x
    x = 6,121,553,113.61/85,717.56
  6. Step 6: Final answer
    x = 71,415.39

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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.