Home / 71,276.18-98,361.26-39,445.09

Finding the Fourth Proportional to 71,276.18, 98,361.26 and 39,445.09

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Solution

The fourth proportional to 71,276.18, 98,361.26 and 39,445.09 is: 54,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,276.18 : 98,361.26 = 39,445.09 : x
  2. Step 2: Convert to fraction form
    71,276.18/98,361.26 = 39,445.09/x
  3. Step 3: Cross multiply
    71,276.18x = 98,361.26 × 39,445.09
  4. Step 4: Simplify right side
    71,276.18x = 3,879,868,310.08
  5. Step 5: Solve for x
    x = 3,879,868,310.08/71,276.18
  6. Step 6: Final answer
    x = 54,434.29

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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.