Home / 86,863.19-130,313.91-49,440.88

Finding the Fourth Proportional to 86,863.19, 130,313.91 and 49,440.88

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Solution

The fourth proportional to 86,863.19, 130,313.91 and 49,440.88 is: 74,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.19 : 130,313.91 = 49,440.88 : x
  2. Step 2: Convert to fraction form
    86,863.19/130,313.91 = 49,440.88/x
  3. Step 3: Cross multiply
    86,863.19x = 130,313.91 × 49,440.88
  4. Step 4: Simplify right side
    86,863.19x = 6,442,834,734.94
  5. Step 5: Solve for x
    x = 6,442,834,734.94/86,863.19
  6. Step 6: Final answer
    x = 74,172.21

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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.