Home / 276,971.37-415,512.95-87,461.34

Finding the Fourth Proportional to 276,971.37, 415,512.95 and 87,461.34

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Solution

The fourth proportional to 276,971.37, 415,512.95 and 87,461.34 is: 131,209.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,971.37 : 415,512.95 = 87,461.34 : x
  2. Step 2: Convert to fraction form
    276,971.37/415,512.95 = 87,461.34/x
  3. Step 3: Cross multiply
    276,971.37x = 415,512.95 × 87,461.34
  4. Step 4: Simplify right side
    276,971.37x = 36,341,318,957.05
  5. Step 5: Solve for x
    x = 36,341,318,957.05/276,971.37
  6. Step 6: Final answer
    x = 131,209.66

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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.