Home / 57,645.17-86,470.40-17,661.28

Finding the Fourth Proportional to 57,645.17, 86,470.40 and 17,661.28

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Solution

The fourth proportional to 57,645.17, 86,470.40 and 17,661.28 is: 26,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,645.17 : 86,470.40 = 17,661.28 : x
  2. Step 2: Convert to fraction form
    57,645.17/86,470.40 = 17,661.28/x
  3. Step 3: Cross multiply
    57,645.17x = 86,470.40 × 17,661.28
  4. Step 4: Simplify right side
    57,645.17x = 1,527,177,946.11
  5. Step 5: Solve for x
    x = 1,527,177,946.11/57,645.17
  6. Step 6: Final answer
    x = 26,492.73

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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.