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Finding the Fourth Proportional to 54,903.30, 82,368.45 and 15,459.90

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Solution

The fourth proportional to 54,903.30, 82,368.45 and 15,459.90 is: 23,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,903.30 : 82,368.45 = 15,459.90 : x
  2. Step 2: Convert to fraction form
    54,903.30/82,368.45 = 15,459.90/x
  3. Step 3: Cross multiply
    54,903.30x = 82,368.45 × 15,459.90
  4. Step 4: Simplify right side
    54,903.30x = 1,273,408,000.16
  5. Step 5: Solve for x
    x = 1,273,408,000.16/54,903.30
  6. Step 6: Final answer
    x = 23,193.65

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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.