Home / 79,401.12-109,568.58-43,590.90

Finding the Fourth Proportional to 79,401.12, 109,568.58 and 43,590.90

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Solution

The fourth proportional to 79,401.12, 109,568.58 and 43,590.90 is: 60,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,401.12 : 109,568.58 = 43,590.90 : x
  2. Step 2: Convert to fraction form
    79,401.12/109,568.58 = 43,590.90/x
  3. Step 3: Cross multiply
    79,401.12x = 109,568.58 × 43,590.90
  4. Step 4: Simplify right side
    79,401.12x = 4,776,193,013.92
  5. Step 5: Solve for x
    x = 4,776,193,013.92/79,401.12
  6. Step 6: Final answer
    x = 60,152.72

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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.