Home / 86,940.42-130,012.11-64,769.22

Finding the Fourth Proportional to 86,940.42, 130,012.11 and 64,769.22

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Solution

The fourth proportional to 86,940.42, 130,012.11 and 64,769.22 is: 96,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,940.42 : 130,012.11 = 64,769.22 : x
  2. Step 2: Convert to fraction form
    86,940.42/130,012.11 = 64,769.22/x
  3. Step 3: Cross multiply
    86,940.42x = 130,012.11 × 64,769.22
  4. Step 4: Simplify right side
    86,940.42x = 8,420,782,955.25
  5. Step 5: Solve for x
    x = 8,420,782,955.25/86,940.42
  6. Step 6: Final answer
    x = 96,856.94

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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.