Home / 88,180.56-121,629.96-54,663.12

Finding the Fourth Proportional to 88,180.56, 121,629.96 and 54,663.12

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Solution

The fourth proportional to 88,180.56, 121,629.96 and 54,663.12 is: 75,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,180.56 : 121,629.96 = 54,663.12 : x
  2. Step 2: Convert to fraction form
    88,180.56/121,629.96 = 54,663.12/x
  3. Step 3: Cross multiply
    88,180.56x = 121,629.96 × 54,663.12
  4. Step 4: Simplify right side
    88,180.56x = 6,648,673,099.08
  5. Step 5: Solve for x
    x = 6,648,673,099.08/88,180.56
  6. Step 6: Final answer
    x = 75,398.40

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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.