Home / 71,805.18-99,087.23-39,533.50

Finding the Fourth Proportional to 71,805.18, 99,087.23 and 39,533.50

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Solution

The fourth proportional to 71,805.18, 99,087.23 and 39,533.50 is: 54,554.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,805.18 : 99,087.23 = 39,533.50 : x
  2. Step 2: Convert to fraction form
    71,805.18/99,087.23 = 39,533.50/x
  3. Step 3: Cross multiply
    71,805.18x = 99,087.23 × 39,533.50
  4. Step 4: Simplify right side
    71,805.18x = 3,917,265,229.90
  5. Step 5: Solve for x
    x = 3,917,265,229.90/71,805.18
  6. Step 6: Final answer
    x = 54,554.07

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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.