Home / 85,333.15-127,815.04-55,660.96

Finding the Fourth Proportional to 85,333.15, 127,815.04 and 55,660.96

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Solution

The fourth proportional to 85,333.15, 127,815.04 and 55,660.96 is: 83,370.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,333.15 : 127,815.04 = 55,660.96 : x
  2. Step 2: Convert to fraction form
    85,333.15/127,815.04 = 55,660.96/x
  3. Step 3: Cross multiply
    85,333.15x = 127,815.04 × 55,660.96
  4. Step 4: Simplify right side
    85,333.15x = 7,114,307,828.84
  5. Step 5: Solve for x
    x = 7,114,307,828.84/85,333.15
  6. Step 6: Final answer
    x = 83,370.97

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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.