Home / 115,086.50-172,617.44-30,855.10

Finding the Fourth Proportional to 115,086.50, 172,617.44 and 30,855.10

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Solution

The fourth proportional to 115,086.50, 172,617.44 and 30,855.10 is: 46,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,086.50 : 172,617.44 = 30,855.10 : x
  2. Step 2: Convert to fraction form
    115,086.50/172,617.44 = 30,855.10/x
  3. Step 3: Cross multiply
    115,086.50x = 172,617.44 × 30,855.10
  4. Step 4: Simplify right side
    115,086.50x = 5,326,128,372.94
  5. Step 5: Solve for x
    x = 5,326,128,372.94/115,086.50
  6. Step 6: Final answer
    x = 46,279.35

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1.5x scale

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.