Home / 71,151.05-98,188.74-38,886.32

Finding the Fourth Proportional to 71,151.05, 98,188.74 and 38,886.32

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Solution

The fourth proportional to 71,151.05, 98,188.74 and 38,886.32 is: 53,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,151.05 : 98,188.74 = 38,886.32 : x
  2. Step 2: Convert to fraction form
    71,151.05/98,188.74 = 38,886.32/x
  3. Step 3: Cross multiply
    71,151.05x = 98,188.74 × 38,886.32
  4. Step 4: Simplify right side
    71,151.05x = 3,818,198,273.09
  5. Step 5: Solve for x
    x = 3,818,198,273.09/71,151.05
  6. Step 6: Final answer
    x = 53,663.28

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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.