Home / 71,467.31-98,622.39-39,639.17

Finding the Fourth Proportional to 71,467.31, 98,622.39 and 39,639.17

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Solution

The fourth proportional to 71,467.31, 98,622.39 and 39,639.17 is: 54,700.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,467.31 : 98,622.39 = 39,639.17 : x
  2. Step 2: Convert to fraction form
    71,467.31/98,622.39 = 39,639.17/x
  3. Step 3: Cross multiply
    71,467.31x = 98,622.39 × 39,639.17
  4. Step 4: Simplify right side
    71,467.31x = 3,909,309,683.02
  5. Step 5: Solve for x
    x = 3,909,309,683.02/71,467.31
  6. Step 6: Final answer
    x = 54,700.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.