Home / 86,067.18-118,739.61-63,459.90

Finding the Fourth Proportional to 86,067.18, 118,739.61 and 63,459.90

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Solution

The fourth proportional to 86,067.18, 118,739.61 and 63,459.90 is: 87,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,067.18 : 118,739.61 = 63,459.90 : x
  2. Step 2: Convert to fraction form
    86,067.18/118,739.61 = 63,459.90/x
  3. Step 3: Cross multiply
    86,067.18x = 118,739.61 × 63,459.90
  4. Step 4: Simplify right side
    86,067.18x = 7,535,203,776.64
  5. Step 5: Solve for x
    x = 7,535,203,776.64/86,067.18
  6. Step 6: Final answer
    x = 87,550.26

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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.