Home / 276,749.48-415,135.13-77,087.31

Finding the Fourth Proportional to 276,749.48, 415,135.13 and 77,087.31

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Solution

The fourth proportional to 276,749.48, 415,135.13 and 77,087.31 is: 115,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,749.48 : 415,135.13 = 77,087.31 : x
  2. Step 2: Convert to fraction form
    276,749.48/415,135.13 = 77,087.31/x
  3. Step 3: Cross multiply
    276,749.48x = 415,135.13 × 77,087.31
  4. Step 4: Simplify right side
    276,749.48x = 32,001,650,072.76
  5. Step 5: Solve for x
    x = 32,001,650,072.76/276,749.48
  6. Step 6: Final answer
    x = 115,634.00

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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.