Home / 86,448.67-129,420.79-53,067.52

Finding the Fourth Proportional to 86,448.67, 129,420.79 and 53,067.52

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Solution

The fourth proportional to 86,448.67, 129,420.79 and 53,067.52 is: 79,446.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,448.67 : 129,420.79 = 53,067.52 : x
  2. Step 2: Convert to fraction form
    86,448.67/129,420.79 = 53,067.52/x
  3. Step 3: Cross multiply
    86,448.67x = 129,420.79 × 53,067.52
  4. Step 4: Simplify right side
    86,448.67x = 6,868,040,390.85
  5. Step 5: Solve for x
    x = 6,868,040,390.85/86,448.67
  6. Step 6: Final answer
    x = 79,446.46

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1.5x scale

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.