Home / 74,176.72-111,283.29-21,586.66

Finding the Fourth Proportional to 74,176.72, 111,283.29 and 21,586.66

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Solution

The fourth proportional to 74,176.72, 111,283.29 and 21,586.66 is: 32,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,176.72 : 111,283.29 = 21,586.66 : x
  2. Step 2: Convert to fraction form
    74,176.72/111,283.29 = 21,586.66/x
  3. Step 3: Cross multiply
    74,176.72x = 111,283.29 × 21,586.66
  4. Step 4: Simplify right side
    74,176.72x = 2,402,234,544.91
  5. Step 5: Solve for x
    x = 2,402,234,544.91/74,176.72
  6. Step 6: Final answer
    x = 32,385.29

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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.