Home / 86,974.78-130,274.70-58,739.58

Finding the Fourth Proportional to 86,974.78, 130,274.70 and 58,739.58

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Solution

The fourth proportional to 86,974.78, 130,274.70 and 58,739.58 is: 87,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,974.78 : 130,274.70 = 58,739.58 : x
  2. Step 2: Convert to fraction form
    86,974.78/130,274.70 = 58,739.58/x
  3. Step 3: Cross multiply
    86,974.78x = 130,274.70 × 58,739.58
  4. Step 4: Simplify right side
    86,974.78x = 7,652,281,162.63
  5. Step 5: Solve for x
    x = 7,652,281,162.63/86,974.78
  6. Step 6: Final answer
    x = 87,982.76

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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.