Home / 109,712.72-164,470.55-39,575.63

Finding the Fourth Proportional to 109,712.72, 164,470.55 and 39,575.63

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Solution

The fourth proportional to 109,712.72, 164,470.55 and 39,575.63 is: 59,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,712.72 : 164,470.55 = 39,575.63 : x
  2. Step 2: Convert to fraction form
    109,712.72/164,470.55 = 39,575.63/x
  3. Step 3: Cross multiply
    109,712.72x = 164,470.55 × 39,575.63
  4. Step 4: Simplify right side
    109,712.72x = 6,509,024,612.47
  5. Step 5: Solve for x
    x = 6,509,024,612.47/109,712.72
  6. Step 6: Final answer
    x = 59,327.90

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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.