Home / 71,497.20-98,677.98-39,676.32

Finding the Fourth Proportional to 71,497.20, 98,677.98 and 39,676.32

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Solution

The fourth proportional to 71,497.20, 98,677.98 and 39,676.32 is: 54,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,497.20 : 98,677.98 = 39,676.32 : x
  2. Step 2: Convert to fraction form
    71,497.20/98,677.98 = 39,676.32/x
  3. Step 3: Cross multiply
    71,497.20x = 98,677.98 × 39,676.32
  4. Step 4: Simplify right side
    71,497.20x = 3,915,179,111.43
  5. Step 5: Solve for x
    x = 3,915,179,111.43/71,497.20
  6. Step 6: Final answer
    x = 54,759.89

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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.