Home / 72,308.09-108,421.90-22,374.02

Finding the Fourth Proportional to 72,308.09, 108,421.90 and 22,374.02

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Solution

The fourth proportional to 72,308.09, 108,421.90 and 22,374.02 is: 33,548.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,308.09 : 108,421.90 = 22,374.02 : x
  2. Step 2: Convert to fraction form
    72,308.09/108,421.90 = 22,374.02/x
  3. Step 3: Cross multiply
    72,308.09x = 108,421.90 × 22,374.02
  4. Step 4: Simplify right side
    72,308.09x = 2,425,833,759.04
  5. Step 5: Solve for x
    x = 2,425,833,759.04/72,308.09
  6. Step 6: Final answer
    x = 33,548.58

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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.