Home / 115,317.78-172,975.64-36,432.00

Finding the Fourth Proportional to 115,317.78, 172,975.64 and 36,432.00

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Solution

The fourth proportional to 115,317.78, 172,975.64 and 36,432.00 is: 54,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,317.78 : 172,975.64 = 36,432.00 : x
  2. Step 2: Convert to fraction form
    115,317.78/172,975.64 = 36,432.00/x
  3. Step 3: Cross multiply
    115,317.78x = 172,975.64 × 36,432.00
  4. Step 4: Simplify right side
    115,317.78x = 6,301,848,974.51
  5. Step 5: Solve for x
    x = 6,301,848,974.51/115,317.78
  6. Step 6: Final answer
    x = 54,647.68

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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.