Home / 71,017.51-98,004.05-39,186.38

Finding the Fourth Proportional to 71,017.51, 98,004.05 and 39,186.38

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Solution

The fourth proportional to 71,017.51, 98,004.05 and 39,186.38 is: 54,077.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,017.51 : 98,004.05 = 39,186.38 : x
  2. Step 2: Convert to fraction form
    71,017.51/98,004.05 = 39,186.38/x
  3. Step 3: Cross multiply
    71,017.51x = 98,004.05 × 39,186.38
  4. Step 4: Simplify right side
    71,017.51x = 3,840,424,251.08
  5. Step 5: Solve for x
    x = 3,840,424,251.08/71,017.51
  6. Step 6: Final answer
    x = 54,077.15

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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.