Home / 79,401.60-109,416.24-56,676.48

Finding the Fourth Proportional to 79,401.60, 109,416.24 and 56,676.48

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Solution

The fourth proportional to 79,401.60, 109,416.24 and 56,676.48 is: 78,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,401.60 : 109,416.24 = 56,676.48 : x
  2. Step 2: Convert to fraction form
    79,401.60/109,416.24 = 56,676.48/x
  3. Step 3: Cross multiply
    79,401.60x = 109,416.24 × 56,676.48
  4. Step 4: Simplify right side
    79,401.60x = 6,201,327,338.04
  5. Step 5: Solve for x
    x = 6,201,327,338.04/79,401.60
  6. Step 6: Final answer
    x = 78,100.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.