Home / 71,395.65-98,527.27-39,128.12

Finding the Fourth Proportional to 71,395.65, 98,527.27 and 39,128.12

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Solution

The fourth proportional to 71,395.65, 98,527.27 and 39,128.12 is: 53,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,395.65 : 98,527.27 = 39,128.12 : x
  2. Step 2: Convert to fraction form
    71,395.65/98,527.27 = 39,128.12/x
  3. Step 3: Cross multiply
    71,395.65x = 98,527.27 × 39,128.12
  4. Step 4: Simplify right side
    71,395.65x = 3,855,186,843.83
  5. Step 5: Solve for x
    x = 3,855,186,843.83/71,395.65
  6. Step 6: Final answer
    x = 53,997.50

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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.