Home / 85,218.90-117,610.83-51,238.46

Finding the Fourth Proportional to 85,218.90, 117,610.83 and 51,238.46

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Solution

The fourth proportional to 85,218.90, 117,610.83 and 51,238.46 is: 70,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.90 : 117,610.83 = 51,238.46 : x
  2. Step 2: Convert to fraction form
    85,218.90/117,610.83 = 51,238.46/x
  3. Step 3: Cross multiply
    85,218.90x = 117,610.83 × 51,238.46
  4. Step 4: Simplify right side
    85,218.90x = 6,026,197,220.47
  5. Step 5: Solve for x
    x = 6,026,197,220.47/85,218.90
  6. Step 6: Final answer
    x = 70,714.33

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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.