Home / 85,784.73-128,677.97-22,613.92

Finding the Fourth Proportional to 85,784.73, 128,677.97 and 22,613.92

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Solution

The fourth proportional to 85,784.73, 128,677.97 and 22,613.92 is: 33,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,784.73 : 128,677.97 = 22,613.92 : x
  2. Step 2: Convert to fraction form
    85,784.73/128,677.97 = 22,613.92/x
  3. Step 3: Cross multiply
    85,784.73x = 128,677.97 × 22,613.92
  4. Step 4: Simplify right side
    85,784.73x = 2,909,912,926.98
  5. Step 5: Solve for x
    x = 2,909,912,926.98/85,784.73
  6. Step 6: Final answer
    x = 33,921.11

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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.