Home / 96,871.16-133,685.64-54,428.84

Finding the Fourth Proportional to 96,871.16, 133,685.64 and 54,428.84

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Solution

The fourth proportional to 96,871.16, 133,685.64 and 54,428.84 is: 75,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,871.16 : 133,685.64 = 54,428.84 : x
  2. Step 2: Convert to fraction form
    96,871.16/133,685.64 = 54,428.84/x
  3. Step 3: Cross multiply
    96,871.16x = 133,685.64 × 54,428.84
  4. Step 4: Simplify right side
    96,871.16x = 7,276,354,309.86
  5. Step 5: Solve for x
    x = 7,276,354,309.86/96,871.16
  6. Step 6: Final answer
    x = 75,113.73

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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.