Home / 85,402.41-128,121.68-32,094.86

Finding the Fourth Proportional to 85,402.41, 128,121.68 and 32,094.86

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Solution

The fourth proportional to 85,402.41, 128,121.68 and 32,094.86 is: 48,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,402.41 : 128,121.68 = 32,094.86 : x
  2. Step 2: Convert to fraction form
    85,402.41/128,121.68 = 32,094.86/x
  3. Step 3: Cross multiply
    85,402.41x = 128,121.68 × 32,094.86
  4. Step 4: Simplify right side
    85,402.41x = 4,112,046,581.48
  5. Step 5: Solve for x
    x = 4,112,046,581.48/85,402.41
  6. Step 6: Final answer
    x = 48,149.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.