Home / 74,283.12-111,326.13-54,468.90

Finding the Fourth Proportional to 74,283.12, 111,326.13 and 54,468.90

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Solution

The fourth proportional to 74,283.12, 111,326.13 and 54,468.90 is: 81,631.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,283.12 : 111,326.13 = 54,468.90 : x
  2. Step 2: Convert to fraction form
    74,283.12/111,326.13 = 54,468.90/x
  3. Step 3: Cross multiply
    74,283.12x = 111,326.13 × 54,468.90
  4. Step 4: Simplify right side
    74,283.12x = 6,063,811,842.36
  5. Step 5: Solve for x
    x = 6,063,811,842.36/74,283.12
  6. Step 6: Final answer
    x = 81,631.09

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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.