Home / 71,418.43-98,555.88-39,587.05

Finding the Fourth Proportional to 71,418.43, 98,555.88 and 39,587.05

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Solution

The fourth proportional to 71,418.43, 98,555.88 and 39,587.05 is: 54,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.43 : 98,555.88 = 39,587.05 : x
  2. Step 2: Convert to fraction form
    71,418.43/98,555.88 = 39,587.05/x
  3. Step 3: Cross multiply
    71,418.43x = 98,555.88 × 39,587.05
  4. Step 4: Simplify right side
    71,418.43x = 3,901,536,549.35
  5. Step 5: Solve for x
    x = 3,901,536,549.35/71,418.43
  6. Step 6: Final answer
    x = 54,629.27

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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.