Home / 86,712.60-130,067.07-39,965.46

Finding the Fourth Proportional to 86,712.60, 130,067.07 and 39,965.46

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Solution

The fourth proportional to 86,712.60, 130,067.07 and 39,965.46 is: 59,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,712.60 : 130,067.07 = 39,965.46 : x
  2. Step 2: Convert to fraction form
    86,712.60/130,067.07 = 39,965.46/x
  3. Step 3: Cross multiply
    86,712.60x = 130,067.07 × 39,965.46
  4. Step 4: Simplify right side
    86,712.60x = 5,198,190,283.40
  5. Step 5: Solve for x
    x = 5,198,190,283.40/86,712.60
  6. Step 6: Final answer
    x = 59,947.35

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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.