Home / 86,669.70-130,004.55-49,215.30

Finding the Fourth Proportional to 86,669.70, 130,004.55 and 49,215.30

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Solution

The fourth proportional to 86,669.70, 130,004.55 and 49,215.30 is: 73,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,669.70 : 130,004.55 = 49,215.30 : x
  2. Step 2: Convert to fraction form
    86,669.70/130,004.55 = 49,215.30/x
  3. Step 3: Cross multiply
    86,669.70x = 130,004.55 × 49,215.30
  4. Step 4: Simplify right side
    86,669.70x = 6,398,212,929.62
  5. Step 5: Solve for x
    x = 6,398,212,929.62/86,669.70
  6. Step 6: Final answer
    x = 73,822.95

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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.