Home / 71,186.47-98,228.69-39,350.95

Finding the Fourth Proportional to 71,186.47, 98,228.69 and 39,350.95

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Solution

The fourth proportional to 71,186.47, 98,228.69 and 39,350.95 is: 54,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,186.47 : 98,228.69 = 39,350.95 : x
  2. Step 2: Convert to fraction form
    71,186.47/98,228.69 = 39,350.95/x
  3. Step 3: Cross multiply
    71,186.47x = 98,228.69 × 39,350.95
  4. Step 4: Simplify right side
    71,186.47x = 3,865,392,268.76
  5. Step 5: Solve for x
    x = 3,865,392,268.76/71,186.47
  6. Step 6: Final answer
    x = 54,299.54

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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.