Home / 115,313.10-172,953.45-36,435.30

Finding the Fourth Proportional to 115,313.10, 172,953.45 and 36,435.30

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Solution

The fourth proportional to 115,313.10, 172,953.45 and 36,435.30 is: 54,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,313.10 : 172,953.45 = 36,435.30 : x
  2. Step 2: Convert to fraction form
    115,313.10/172,953.45 = 36,435.30/x
  3. Step 3: Cross multiply
    115,313.10x = 172,953.45 × 36,435.30
  4. Step 4: Simplify right side
    115,313.10x = 6,301,610,836.79
  5. Step 5: Solve for x
    x = 6,301,610,836.79/115,313.10
  6. Step 6: Final answer
    x = 54,647.83

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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.