Home / 85,321.36-127,719.58-55,675.36

Finding the Fourth Proportional to 85,321.36, 127,719.58 and 55,675.36

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Solution

The fourth proportional to 85,321.36, 127,719.58 and 55,675.36 is: 83,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,321.36 : 127,719.58 = 55,675.36 : x
  2. Step 2: Convert to fraction form
    85,321.36/127,719.58 = 55,675.36/x
  3. Step 3: Cross multiply
    85,321.36x = 127,719.58 × 55,675.36
  4. Step 4: Simplify right side
    85,321.36x = 7,110,833,595.55
  5. Step 5: Solve for x
    x = 7,110,833,595.55/85,321.36
  6. Step 6: Final answer
    x = 83,341.78

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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.