Home / 86,247.03-129,326.81-39,459.81

Finding the Fourth Proportional to 86,247.03, 129,326.81 and 39,459.81

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Solution

The fourth proportional to 86,247.03, 129,326.81 and 39,459.81 is: 59,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,247.03 : 129,326.81 = 39,459.81 : x
  2. Step 2: Convert to fraction form
    86,247.03/129,326.81 = 39,459.81/x
  3. Step 3: Cross multiply
    86,247.03x = 129,326.81 × 39,459.81
  4. Step 4: Simplify right side
    86,247.03x = 5,103,211,350.51
  5. Step 5: Solve for x
    x = 5,103,211,350.51/86,247.03
  6. Step 6: Final answer
    x = 59,169.71

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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.