Home / 90,954.64-136,437.02-27,784.36

Finding the Fourth Proportional to 90,954.64, 136,437.02 and 27,784.36

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Solution

The fourth proportional to 90,954.64, 136,437.02 and 27,784.36 is: 41,678.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,954.64 : 136,437.02 = 27,784.36 : x
  2. Step 2: Convert to fraction form
    90,954.64/136,437.02 = 27,784.36/x
  3. Step 3: Cross multiply
    90,954.64x = 136,437.02 × 27,784.36
  4. Step 4: Simplify right side
    90,954.64x = 3,790,815,281.01
  5. Step 5: Solve for x
    x = 3,790,815,281.01/90,954.64
  6. Step 6: Final answer
    x = 41,678.09

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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.