Home / 86,938.24-130,441.92-40,213.12

Finding the Fourth Proportional to 86,938.24, 130,441.92 and 40,213.12

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Solution

The fourth proportional to 86,938.24, 130,441.92 and 40,213.12 is: 60,335.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938.24 : 130,441.92 = 40,213.12 : x
  2. Step 2: Convert to fraction form
    86,938.24/130,441.92 = 40,213.12/x
  3. Step 3: Cross multiply
    86,938.24x = 130,441.92 × 40,213.12
  4. Step 4: Simplify right side
    86,938.24x = 5,245,476,581.99
  5. Step 5: Solve for x
    x = 5,245,476,581.99/86,938.24
  6. Step 6: Final answer
    x = 60,335.67

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1.5x scale

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.