Home / 86,660.48-130,010.16-28,962.06

Finding the Fourth Proportional to 86,660.48, 130,010.16 and 28,962.06

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Solution

The fourth proportional to 86,660.48, 130,010.16 and 28,962.06 is: 43,449.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,660.48 : 130,010.16 = 28,962.06 : x
  2. Step 2: Convert to fraction form
    86,660.48/130,010.16 = 28,962.06/x
  3. Step 3: Cross multiply
    86,660.48x = 130,010.16 × 28,962.06
  4. Step 4: Simplify right side
    86,660.48x = 3,765,361,675.60
  5. Step 5: Solve for x
    x = 3,765,361,675.60/86,660.48
  6. Step 6: Final answer
    x = 43,449.58

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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.