Home / 84,990.12-127,427.67-47,576.02

Finding the Fourth Proportional to 84,990.12, 127,427.67 and 47,576.02

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Solution

The fourth proportional to 84,990.12, 127,427.67 and 47,576.02 is: 71,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,990.12 : 127,427.67 = 47,576.02 : x
  2. Step 2: Convert to fraction form
    84,990.12/127,427.67 = 47,576.02/x
  3. Step 3: Cross multiply
    84,990.12x = 127,427.67 × 47,576.02
  4. Step 4: Simplify right side
    84,990.12x = 6,062,500,560.92
  5. Step 5: Solve for x
    x = 6,062,500,560.92/84,990.12
  6. Step 6: Final answer
    x = 71,331.83

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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.