Home / 86,935.87-130,402.40-27,771.15

Finding the Fourth Proportional to 86,935.87, 130,402.40 and 27,771.15

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Solution

The fourth proportional to 86,935.87, 130,402.40 and 27,771.15 is: 41,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,935.87 : 130,402.40 = 27,771.15 : x
  2. Step 2: Convert to fraction form
    86,935.87/130,402.40 = 27,771.15/x
  3. Step 3: Cross multiply
    86,935.87x = 130,402.40 × 27,771.15
  4. Step 4: Simplify right side
    86,935.87x = 3,621,424,610.76
  5. Step 5: Solve for x
    x = 3,621,424,610.76/86,935.87
  6. Step 6: Final answer
    x = 41,656.28

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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.