Home / 89,177.90-133,730.37-38,579.78

Finding the Fourth Proportional to 89,177.90, 133,730.37 and 38,579.78

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Solution

The fourth proportional to 89,177.90, 133,730.37 and 38,579.78 is: 57,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,177.90 : 133,730.37 = 38,579.78 : x
  2. Step 2: Convert to fraction form
    89,177.90/133,730.37 = 38,579.78/x
  3. Step 3: Cross multiply
    89,177.90x = 133,730.37 × 38,579.78
  4. Step 4: Simplify right side
    89,177.90x = 5,159,288,253.92
  5. Step 5: Solve for x
    x = 5,159,288,253.92/89,177.90
  6. Step 6: Final answer
    x = 57,853.89

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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.