Home / 84,789.79-127,178.51-34,192.23

Finding the Fourth Proportional to 84,789.79, 127,178.51 and 34,192.23

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Solution

The fourth proportional to 84,789.79, 127,178.51 and 34,192.23 is: 51,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,789.79 : 127,178.51 = 34,192.23 : x
  2. Step 2: Convert to fraction form
    84,789.79/127,178.51 = 34,192.23/x
  3. Step 3: Cross multiply
    84,789.79x = 127,178.51 × 34,192.23
  4. Step 4: Simplify right side
    84,789.79x = 4,348,516,217.10
  5. Step 5: Solve for x
    x = 4,348,516,217.10/84,789.79
  6. Step 6: Final answer
    x = 51,285.85

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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.