Home / 82,880.20-124,357.38-43,428.16

Finding the Fourth Proportional to 82,880.20, 124,357.38 and 43,428.16

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Solution

The fourth proportional to 82,880.20, 124,357.38 and 43,428.16 is: 65,161.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,880.20 : 124,357.38 = 43,428.16 : x
  2. Step 2: Convert to fraction form
    82,880.20/124,357.38 = 43,428.16/x
  3. Step 3: Cross multiply
    82,880.20x = 124,357.38 × 43,428.16
  4. Step 4: Simplify right side
    82,880.20x = 5,400,612,195.82
  5. Step 5: Solve for x
    x = 5,400,612,195.82/82,880.20
  6. Step 6: Final answer
    x = 65,161.67

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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.