Home / 115,575.12-173,412.77-40,748.72

Finding the Fourth Proportional to 115,575.12, 173,412.77 and 40,748.72

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Solution

The fourth proportional to 115,575.12, 173,412.77 and 40,748.72 is: 61,140.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,575.12 : 173,412.77 = 40,748.72 : x
  2. Step 2: Convert to fraction form
    115,575.12/173,412.77 = 40,748.72/x
  3. Step 3: Cross multiply
    115,575.12x = 173,412.77 × 40,748.72
  4. Step 4: Simplify right side
    115,575.12x = 7,066,347,338.35
  5. Step 5: Solve for x
    x = 7,066,347,338.35/115,575.12
  6. Step 6: Final answer
    x = 61,140.73

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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.