Home / 85,561.43-128,332.33-22,387.66

Finding the Fourth Proportional to 85,561.43, 128,332.33 and 22,387.66

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Solution

The fourth proportional to 85,561.43, 128,332.33 and 22,387.66 is: 33,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,561.43 : 128,332.33 = 22,387.66 : x
  2. Step 2: Convert to fraction form
    85,561.43/128,332.33 = 22,387.66/x
  3. Step 3: Cross multiply
    85,561.43x = 128,332.33 × 22,387.66
  4. Step 4: Simplify right side
    85,561.43x = 2,873,060,320.18
  5. Step 5: Solve for x
    x = 2,873,060,320.18/85,561.43
  6. Step 6: Final answer
    x = 33,578.92

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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.