Home / 71,017.96-98,004.70-39,186.86

Finding the Fourth Proportional to 71,017.96, 98,004.70 and 39,186.86

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Solution

The fourth proportional to 71,017.96, 98,004.70 and 39,186.86 is: 54,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,017.96 : 98,004.70 = 39,186.86 : x
  2. Step 2: Convert to fraction form
    71,017.96/98,004.70 = 39,186.86/x
  3. Step 3: Cross multiply
    71,017.96x = 98,004.70 × 39,186.86
  4. Step 4: Simplify right side
    71,017.96x = 3,840,496,458.24
  5. Step 5: Solve for x
    x = 3,840,496,458.24/71,017.96
  6. Step 6: Final answer
    x = 54,077.82

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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.