Home / 86,933.12-130,398.28-27,768.40

Finding the Fourth Proportional to 86,933.12, 130,398.28 and 27,768.40

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Solution

The fourth proportional to 86,933.12, 130,398.28 and 27,768.40 is: 41,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933.12 : 130,398.28 = 27,768.40 : x
  2. Step 2: Convert to fraction form
    86,933.12/130,398.28 = 27,768.40/x
  3. Step 3: Cross multiply
    86,933.12x = 130,398.28 × 27,768.40
  4. Step 4: Simplify right side
    86,933.12x = 3,620,951,598.35
  5. Step 5: Solve for x
    x = 3,620,951,598.35/86,933.12
  6. Step 6: Final answer
    x = 41,652.15

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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.