Home / 85,228.48-117,670.08-55,027.36

Finding the Fourth Proportional to 85,228.48, 117,670.08 and 55,027.36

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Solution

The fourth proportional to 85,228.48, 117,670.08 and 55,027.36 is: 75,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,228.48 : 117,670.08 = 55,027.36 : x
  2. Step 2: Convert to fraction form
    85,228.48/117,670.08 = 55,027.36/x
  3. Step 3: Cross multiply
    85,228.48x = 117,670.08 × 55,027.36
  4. Step 4: Simplify right side
    85,228.48x = 6,475,073,853.39
  5. Step 5: Solve for x
    x = 6,475,073,853.39/85,228.48
  6. Step 6: Final answer
    x = 75,973.12

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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.