Home / 86,972.82-130,482.30-27,809.58

Finding the Fourth Proportional to 86,972.82, 130,482.30 and 27,809.58

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Solution

The fourth proportional to 86,972.82, 130,482.30 and 27,809.58 is: 41,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,972.82 : 130,482.30 = 27,809.58 : x
  2. Step 2: Convert to fraction form
    86,972.82/130,482.30 = 27,809.58/x
  3. Step 3: Cross multiply
    86,972.82x = 130,482.30 × 27,809.58
  4. Step 4: Simplify right side
    86,972.82x = 3,628,657,960.43
  5. Step 5: Solve for x
    x = 3,628,657,960.43/86,972.82
  6. Step 6: Final answer
    x = 41,721.75

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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.