Home / 86,251.36-129,427.14-36,328.36

Finding the Fourth Proportional to 86,251.36, 129,427.14 and 36,328.36

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Solution

The fourth proportional to 86,251.36, 129,427.14 and 36,328.36 is: 54,513.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,251.36 : 129,427.14 = 36,328.36 : x
  2. Step 2: Convert to fraction form
    86,251.36/129,427.14 = 36,328.36/x
  3. Step 3: Cross multiply
    86,251.36x = 129,427.14 × 36,328.36
  4. Step 4: Simplify right side
    86,251.36x = 4,701,875,735.69
  5. Step 5: Solve for x
    x = 4,701,875,735.69/86,251.36
  6. Step 6: Final answer
    x = 54,513.64

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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.