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Finding the Fourth Proportional to 85,650.96, 128,402.61 and 33,097.32

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Solution

The fourth proportional to 85,650.96, 128,402.61 and 33,097.32 is: 49,617.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,650.96 : 128,402.61 = 33,097.32 : x
  2. Step 2: Convert to fraction form
    85,650.96/128,402.61 = 33,097.32/x
  3. Step 3: Cross multiply
    85,650.96x = 128,402.61 × 33,097.32
  4. Step 4: Simplify right side
    85,650.96x = 4,249,782,272.01
  5. Step 5: Solve for x
    x = 4,249,782,272.01/85,650.96
  6. Step 6: Final answer
    x = 49,617.45

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1.5x scale

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.