Home / 86,786.13-130,196.61-36,865.83

Finding the Fourth Proportional to 86,786.13, 130,196.61 and 36,865.83

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Solution

The fourth proportional to 86,786.13, 130,196.61 and 36,865.83 is: 55,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,786.13 : 130,196.61 = 36,865.83 : x
  2. Step 2: Convert to fraction form
    86,786.13/130,196.61 = 36,865.83/x
  3. Step 3: Cross multiply
    86,786.13x = 130,196.61 × 36,865.83
  4. Step 4: Simplify right side
    86,786.13x = 4,799,806,090.84
  5. Step 5: Solve for x
    x = 4,799,806,090.84/86,786.13
  6. Step 6: Final answer
    x = 55,306.14

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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.