Home / 115,318.90-172,977.32-36,433.13

Finding the Fourth Proportional to 115,318.90, 172,977.32 and 36,433.13

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Solution

The fourth proportional to 115,318.90, 172,977.32 and 36,433.13 is: 54,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,318.90 : 172,977.32 = 36,433.13 : x
  2. Step 2: Convert to fraction form
    115,318.90/172,977.32 = 36,433.13/x
  3. Step 3: Cross multiply
    115,318.90x = 172,977.32 × 36,433.13
  4. Step 4: Simplify right side
    115,318.90x = 6,302,104,412.81
  5. Step 5: Solve for x
    x = 6,302,104,412.81/115,318.90
  6. Step 6: Final answer
    x = 54,649.36

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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.