Home / 86,204.57-129,138.72-48,651.04

Finding the Fourth Proportional to 86,204.57, 129,138.72 and 48,651.04

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Solution

The fourth proportional to 86,204.57, 129,138.72 and 48,651.04 is: 72,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,204.57 : 129,138.72 = 48,651.04 : x
  2. Step 2: Convert to fraction form
    86,204.57/129,138.72 = 48,651.04/x
  3. Step 3: Cross multiply
    86,204.57x = 129,138.72 × 48,651.04
  4. Step 4: Simplify right side
    86,204.57x = 6,282,733,032.27
  5. Step 5: Solve for x
    x = 6,282,733,032.27/86,204.57
  6. Step 6: Final answer
    x = 72,881.67

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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.