Home / 84,823.40-127,235.10-53,330.60

Finding the Fourth Proportional to 84,823.40, 127,235.10 and 53,330.60

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Solution

The fourth proportional to 84,823.40, 127,235.10 and 53,330.60 is: 79,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,823.40 : 127,235.10 = 53,330.60 : x
  2. Step 2: Convert to fraction form
    84,823.40/127,235.10 = 53,330.60/x
  3. Step 3: Cross multiply
    84,823.40x = 127,235.10 × 53,330.60
  4. Step 4: Simplify right side
    84,823.40x = 6,785,524,224.06
  5. Step 5: Solve for x
    x = 6,785,524,224.06/84,823.40
  6. Step 6: Final answer
    x = 79,995.90

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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.