Home / 86,529.81-129,808.44-36,610.28

Finding the Fourth Proportional to 86,529.81, 129,808.44 and 36,610.28

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Solution

The fourth proportional to 86,529.81, 129,808.44 and 36,610.28 is: 54,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,529.81 : 129,808.44 = 36,610.28 : x
  2. Step 2: Convert to fraction form
    86,529.81/129,808.44 = 36,610.28/x
  3. Step 3: Cross multiply
    86,529.81x = 129,808.44 × 36,610.28
  4. Step 4: Simplify right side
    86,529.81x = 4,752,323,567.76
  5. Step 5: Solve for x
    x = 4,752,323,567.76/86,529.81
  6. Step 6: Final answer
    x = 54,921.23

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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.