Home / 86,627.32-129,918-34,037.28

Finding the Fourth Proportional to 86,627.32, 129,918 and 34,037.28

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Solution

The fourth proportional to 86,627.32, 129,918 and 34,037.28 is: 51,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,627.32 : 129,918 = 34,037.28 : x
  2. Step 2: Convert to fraction form
    86,627.32/129,918 = 34,037.28/x
  3. Step 3: Cross multiply
    86,627.32x = 129,918 × 34,037.28
  4. Step 4: Simplify right side
    86,627.32x = 4,422,055,343.04
  5. Step 5: Solve for x
    x = 4,422,055,343.04/86,627.32
  6. Step 6: Final answer
    x = 51,046.89

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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.