Home / 86,938.79-130,344.39-27,740.34

Finding the Fourth Proportional to 86,938.79, 130,344.39 and 27,740.34

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Solution

The fourth proportional to 86,938.79, 130,344.39 and 27,740.34 is: 41,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938.79 : 130,344.39 = 27,740.34 : x
  2. Step 2: Convert to fraction form
    86,938.79/130,344.39 = 27,740.34/x
  3. Step 3: Cross multiply
    86,938.79x = 130,344.39 × 27,740.34
  4. Step 4: Simplify right side
    86,938.79x = 3,615,797,695.69
  5. Step 5: Solve for x
    x = 3,615,797,695.69/86,938.79
  6. Step 6: Final answer
    x = 41,590.16

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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.