Home / 86,140.66-129,155.63-41,137.67

Finding the Fourth Proportional to 86,140.66, 129,155.63 and 41,137.67

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Solution

The fourth proportional to 86,140.66, 129,155.63 and 41,137.67 is: 61,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,140.66 : 129,155.63 = 41,137.67 : x
  2. Step 2: Convert to fraction form
    86,140.66/129,155.63 = 41,137.67/x
  3. Step 3: Cross multiply
    86,140.66x = 129,155.63 × 41,137.67
  4. Step 4: Simplify right side
    86,140.66x = 5,313,161,685.58
  5. Step 5: Solve for x
    x = 5,313,161,685.58/86,140.66
  6. Step 6: Final answer
    x = 61,680.07

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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.