Home / 276,965.42-415,518.03-77,285.63

Finding the Fourth Proportional to 276,965.42, 415,518.03 and 77,285.63

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Solution

The fourth proportional to 276,965.42, 415,518.03 and 77,285.63 is: 115,947.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,965.42 : 415,518.03 = 77,285.63 : x
  2. Step 2: Convert to fraction form
    276,965.42/415,518.03 = 77,285.63/x
  3. Step 3: Cross multiply
    276,965.42x = 415,518.03 × 77,285.63
  4. Step 4: Simplify right side
    276,965.42x = 32,113,570,647.32
  5. Step 5: Solve for x
    x = 32,113,570,647.32/276,965.42
  6. Step 6: Final answer
    x = 115,947.94

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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.