Home / 87,191.88-120,316.48-48,942.67

Finding the Fourth Proportional to 87,191.88, 120,316.48 and 48,942.67

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Solution

The fourth proportional to 87,191.88, 120,316.48 and 48,942.67 is: 67,536.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.88 : 120,316.48 = 48,942.67 : x
  2. Step 2: Convert to fraction form
    87,191.88/120,316.48 = 48,942.67/x
  3. Step 3: Cross multiply
    87,191.88x = 120,316.48 × 48,942.67
  4. Step 4: Simplify right side
    87,191.88x = 5,888,609,776.20
  5. Step 5: Solve for x
    x = 5,888,609,776.20/87,191.88
  6. Step 6: Final answer
    x = 67,536.22

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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.