Home / 71,943.14-99,281.59-40,111.40

Finding the Fourth Proportional to 71,943.14, 99,281.59 and 40,111.40

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Solution

The fourth proportional to 71,943.14, 99,281.59 and 40,111.40 is: 55,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,943.14 : 99,281.59 = 40,111.40 : x
  2. Step 2: Convert to fraction form
    71,943.14/99,281.59 = 40,111.40/x
  3. Step 3: Cross multiply
    71,943.14x = 99,281.59 × 40,111.40
  4. Step 4: Simplify right side
    71,943.14x = 3,982,322,972.44
  5. Step 5: Solve for x
    x = 3,982,322,972.44/71,943.14
  6. Step 6: Final answer
    x = 55,353.76

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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.