Home / 86,717.17-130,072.78-36,765.10

Finding the Fourth Proportional to 86,717.17, 130,072.78 and 36,765.10

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Solution

The fourth proportional to 86,717.17, 130,072.78 and 36,765.10 is: 55,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,717.17 : 130,072.78 = 36,765.10 : x
  2. Step 2: Convert to fraction form
    86,717.17/130,072.78 = 36,765.10/x
  3. Step 3: Cross multiply
    86,717.17x = 130,072.78 × 36,765.10
  4. Step 4: Simplify right side
    86,717.17x = 4,782,137,929.79
  5. Step 5: Solve for x
    x = 4,782,137,929.79/86,717.17
  6. Step 6: Final answer
    x = 55,146.38

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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.