Home / 79,521.19-109,741.61-45,540.67

Finding the Fourth Proportional to 79,521.19, 109,741.61 and 45,540.67

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Solution

The fourth proportional to 79,521.19, 109,741.61 and 45,540.67 is: 62,847.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,521.19 : 109,741.61 = 45,540.67 : x
  2. Step 2: Convert to fraction form
    79,521.19/109,741.61 = 45,540.67/x
  3. Step 3: Cross multiply
    79,521.19x = 109,741.61 × 45,540.67
  4. Step 4: Simplify right side
    79,521.19x = 4,997,706,446.28
  5. Step 5: Solve for x
    x = 4,997,706,446.28/79,521.19
  6. Step 6: Final answer
    x = 62,847.48

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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.