Home / 86,956.70-130,346.79-49,439.22

Finding the Fourth Proportional to 86,956.70, 130,346.79 and 49,439.22

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Solution

The fourth proportional to 86,956.70, 130,346.79 and 49,439.22 is: 74,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,956.70 : 130,346.79 = 49,439.22 : x
  2. Step 2: Convert to fraction form
    86,956.70/130,346.79 = 49,439.22/x
  3. Step 3: Cross multiply
    86,956.70x = 130,346.79 × 49,439.22
  4. Step 4: Simplify right side
    86,956.70x = 6,444,243,627.10
  5. Step 5: Solve for x
    x = 6,444,243,627.10/86,956.70
  6. Step 6: Final answer
    x = 74,108.65

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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.