Home / 57,657.21-86,488.89-54,501.78

Finding the Fourth Proportional to 57,657.21, 86,488.89 and 54,501.78

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Solution

The fourth proportional to 57,657.21, 86,488.89 and 54,501.78 is: 81,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,657.21 : 86,488.89 = 54,501.78 : x
  2. Step 2: Convert to fraction form
    57,657.21/86,488.89 = 54,501.78/x
  3. Step 3: Cross multiply
    57,657.21x = 86,488.89 × 54,501.78
  4. Step 4: Simplify right side
    57,657.21x = 4,713,798,983.94
  5. Step 5: Solve for x
    x = 4,713,798,983.94/57,657.21
  6. Step 6: Final answer
    x = 81,755.58

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1.5x scale

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.