Home / 86,982.93-130,505.49-53,664.21

Finding the Fourth Proportional to 86,982.93, 130,505.49 and 53,664.21

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Solution

The fourth proportional to 86,982.93, 130,505.49 and 53,664.21 is: 80,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,982.93 : 130,505.49 = 53,664.21 : x
  2. Step 2: Convert to fraction form
    86,982.93/130,505.49 = 53,664.21/x
  3. Step 3: Cross multiply
    86,982.93x = 130,505.49 × 53,664.21
  4. Step 4: Simplify right side
    86,982.93x = 7,003,474,021.51
  5. Step 5: Solve for x
    x = 7,003,474,021.51/86,982.93
  6. Step 6: Final answer
    x = 80,515.50

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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.