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Finding the Fourth Proportional to 72,007.89, 108,030.06 and 22,090.53

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Solution

The fourth proportional to 72,007.89, 108,030.06 and 22,090.53 is: 33,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,007.89 : 108,030.06 = 22,090.53 : x
  2. Step 2: Convert to fraction form
    72,007.89/108,030.06 = 22,090.53/x
  3. Step 3: Cross multiply
    72,007.89x = 108,030.06 × 22,090.53
  4. Step 4: Simplify right side
    72,007.89x = 2,386,441,281.33
  5. Step 5: Solve for x
    x = 2,386,441,281.33/72,007.89
  6. Step 6: Final answer
    x = 33,141.39

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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.