Home / 281,637.36-422,475.48-81,959.40

Finding the Fourth Proportional to 281,637.36, 422,475.48 and 81,959.40

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Solution

The fourth proportional to 281,637.36, 422,475.48 and 81,959.40 is: 122,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,637.36 : 422,475.48 = 81,959.40 : x
  2. Step 2: Convert to fraction form
    281,637.36/422,475.48 = 81,959.40/x
  3. Step 3: Cross multiply
    281,637.36x = 422,475.48 × 81,959.40
  4. Step 4: Simplify right side
    281,637.36x = 34,625,836,855.51
  5. Step 5: Solve for x
    x = 34,625,836,855.51/281,637.36
  6. Step 6: Final answer
    x = 122,944.76

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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.