Home / 86,739.53-130,020.67-49,220.36

Finding the Fourth Proportional to 86,739.53, 130,020.67 and 49,220.36

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Solution

The fourth proportional to 86,739.53, 130,020.67 and 49,220.36 is: 73,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,739.53 : 130,020.67 = 49,220.36 : x
  2. Step 2: Convert to fraction form
    86,739.53/130,020.67 = 49,220.36/x
  3. Step 3: Cross multiply
    86,739.53x = 130,020.67 × 49,220.36
  4. Step 4: Simplify right side
    86,739.53x = 6,399,663,288.64
  5. Step 5: Solve for x
    x = 6,399,663,288.64/86,739.53
  6. Step 6: Final answer
    x = 73,780.24

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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.