Home / 86,972.74-130,293.60-49,558.58

Finding the Fourth Proportional to 86,972.74, 130,293.60 and 49,558.58

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Solution

The fourth proportional to 86,972.74, 130,293.60 and 49,558.58 is: 74,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,972.74 : 130,293.60 = 49,558.58 : x
  2. Step 2: Convert to fraction form
    86,972.74/130,293.60 = 49,558.58/x
  3. Step 3: Cross multiply
    86,972.74x = 130,293.60 × 49,558.58
  4. Step 4: Simplify right side
    86,972.74x = 6,457,165,799.09
  5. Step 5: Solve for x
    x = 6,457,165,799.09/86,972.74
  6. Step 6: Final answer
    x = 74,243.56

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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.