Home / 115,283.10-172,910.07-36,405.30

Finding the Fourth Proportional to 115,283.10, 172,910.07 and 36,405.30

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Solution

The fourth proportional to 115,283.10, 172,910.07 and 36,405.30 is: 54,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,283.10 : 172,910.07 = 36,405.30 : x
  2. Step 2: Convert to fraction form
    115,283.10/172,910.07 = 36,405.30/x
  3. Step 3: Cross multiply
    115,283.10x = 172,910.07 × 36,405.30
  4. Step 4: Simplify right side
    115,283.10x = 6,294,842,971.37
  5. Step 5: Solve for x
    x = 6,294,842,971.37/115,283.10
  6. Step 6: Final answer
    x = 54,603.35

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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.