Home / 90,592.88-125,029.69-54,783.14

Finding the Fourth Proportional to 90,592.88, 125,029.69 and 54,783.14

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Solution

The fourth proportional to 90,592.88, 125,029.69 and 54,783.14 is: 75,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,592.88 : 125,029.69 = 54,783.14 : x
  2. Step 2: Convert to fraction form
    90,592.88/125,029.69 = 54,783.14/x
  3. Step 3: Cross multiply
    90,592.88x = 125,029.69 × 54,783.14
  4. Step 4: Simplify right side
    90,592.88x = 6,849,519,011.43
  5. Step 5: Solve for x
    x = 6,849,519,011.43/90,592.88
  6. Step 6: Final answer
    x = 75,607.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.