Home / 86,246.03-129,325.31-39,458.81

Finding the Fourth Proportional to 86,246.03, 129,325.31 and 39,458.81

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Solution

The fourth proportional to 86,246.03, 129,325.31 and 39,458.81 is: 59,168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,246.03 : 129,325.31 = 39,458.81 : x
  2. Step 2: Convert to fraction form
    86,246.03/129,325.31 = 39,458.81/x
  3. Step 3: Cross multiply
    86,246.03x = 129,325.31 × 39,458.81
  4. Step 4: Simplify right side
    86,246.03x = 5,103,023,109.47
  5. Step 5: Solve for x
    x = 5,103,023,109.47/86,246.03
  6. Step 6: Final answer
    x = 59,168.21

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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.