Home / 86,299.52-129,464.04-39,556.40

Finding the Fourth Proportional to 86,299.52, 129,464.04 and 39,556.40

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Solution

The fourth proportional to 86,299.52, 129,464.04 and 39,556.40 is: 59,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,299.52 : 129,464.04 = 39,556.40 : x
  2. Step 2: Convert to fraction form
    86,299.52/129,464.04 = 39,556.40/x
  3. Step 3: Cross multiply
    86,299.52x = 129,464.04 × 39,556.40
  4. Step 4: Simplify right side
    86,299.52x = 5,121,131,351.86
  5. Step 5: Solve for x
    x = 5,121,131,351.86/86,299.52
  6. Step 6: Final answer
    x = 59,341.37

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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.