Home / 86,768.89-130,004.79-47,353.69

Finding the Fourth Proportional to 86,768.89, 130,004.79 and 47,353.69

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Solution

The fourth proportional to 86,768.89, 130,004.79 and 47,353.69 is: 70,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,768.89 : 130,004.79 = 47,353.69 : x
  2. Step 2: Convert to fraction form
    86,768.89/130,004.79 = 47,353.69/x
  3. Step 3: Cross multiply
    86,768.89x = 130,004.79 × 47,353.69
  4. Step 4: Simplify right side
    86,768.89x = 6,156,205,874.15
  5. Step 5: Solve for x
    x = 6,156,205,874.15/86,768.89
  6. Step 6: Final answer
    x = 70,949.46

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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.