Home / 86,458.34-129,700.92-36,538.65

Finding the Fourth Proportional to 86,458.34, 129,700.92 and 36,538.65

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Solution

The fourth proportional to 86,458.34, 129,700.92 and 36,538.65 is: 54,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,458.34 : 129,700.92 = 36,538.65 : x
  2. Step 2: Convert to fraction form
    86,458.34/129,700.92 = 36,538.65/x
  3. Step 3: Cross multiply
    86,458.34x = 129,700.92 × 36,538.65
  4. Step 4: Simplify right side
    86,458.34x = 4,739,096,520.56
  5. Step 5: Solve for x
    x = 4,739,096,520.56/86,458.34
  6. Step 6: Final answer
    x = 54,813.65

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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.