Home / 86,035.44-128,845.48-51,742.60

Finding the Fourth Proportional to 86,035.44, 128,845.48 and 51,742.60

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Solution

The fourth proportional to 86,035.44, 128,845.48 and 51,742.60 is: 77,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,035.44 : 128,845.48 = 51,742.60 : x
  2. Step 2: Convert to fraction form
    86,035.44/128,845.48 = 51,742.60/x
  3. Step 3: Cross multiply
    86,035.44x = 128,845.48 × 51,742.60
  4. Step 4: Simplify right side
    86,035.44x = 6,666,800,133.45
  5. Step 5: Solve for x
    x = 6,666,800,133.45/86,035.44
  6. Step 6: Final answer
    x = 77,489.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.