Home / 83,178.76-114,754.14-51,292.30

Finding the Fourth Proportional to 83,178.76, 114,754.14 and 51,292.30

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Solution

The fourth proportional to 83,178.76, 114,754.14 and 51,292.30 is: 70,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,178.76 : 114,754.14 = 51,292.30 : x
  2. Step 2: Convert to fraction form
    83,178.76/114,754.14 = 51,292.30/x
  3. Step 3: Cross multiply
    83,178.76x = 114,754.14 × 51,292.30
  4. Step 4: Simplify right side
    83,178.76x = 5,886,003,775.12
  5. Step 5: Solve for x
    x = 5,886,003,775.12/83,178.76
  6. Step 6: Final answer
    x = 70,763.30

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1.5x scale

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.