Home / 276,748.22-415,133.26-77,086.05

Finding the Fourth Proportional to 276,748.22, 415,133.26 and 77,086.05

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Solution

The fourth proportional to 276,748.22, 415,133.26 and 77,086.05 is: 115,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,748.22 : 415,133.26 = 77,086.05 : x
  2. Step 2: Convert to fraction form
    276,748.22/415,133.26 = 77,086.05/x
  3. Step 3: Cross multiply
    276,748.22x = 415,133.26 × 77,086.05
  4. Step 4: Simplify right side
    276,748.22x = 32,000,983,237.02
  5. Step 5: Solve for x
    x = 32,000,983,237.02/276,748.22
  6. Step 6: Final answer
    x = 115,632.12

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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.