Home / 84,995.19-127,497.33-21,815.87

Finding the Fourth Proportional to 84,995.19, 127,497.33 and 21,815.87

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Solution

The fourth proportional to 84,995.19, 127,497.33 and 21,815.87 is: 32,724.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,995.19 : 127,497.33 = 21,815.87 : x
  2. Step 2: Convert to fraction form
    84,995.19/127,497.33 = 21,815.87/x
  3. Step 3: Cross multiply
    84,995.19x = 127,497.33 × 21,815.87
  4. Step 4: Simplify right side
    84,995.19x = 2,781,464,539.14
  5. Step 5: Solve for x
    x = 2,781,464,539.14/84,995.19
  6. Step 6: Final answer
    x = 32,724.96

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1.5x scale

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.