Home / 81,877.60-112,989.36-46,067.20

Finding the Fourth Proportional to 81,877.60, 112,989.36 and 46,067.20

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Solution

The fourth proportional to 81,877.60, 112,989.36 and 46,067.20 is: 63,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,877.60 : 112,989.36 = 46,067.20 : x
  2. Step 2: Convert to fraction form
    81,877.60/112,989.36 = 46,067.20/x
  3. Step 3: Cross multiply
    81,877.60x = 112,989.36 × 46,067.20
  4. Step 4: Simplify right side
    81,877.60x = 5,205,103,444.99
  5. Step 5: Solve for x
    x = 5,205,103,444.99/81,877.60
  6. Step 6: Final answer
    x = 63,571.76

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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.