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Finding the Fourth Proportional to 73,260.30, 109,890.45 and 48,312.30

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Solution

The fourth proportional to 73,260.30, 109,890.45 and 48,312.30 is: 72,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,260.30 : 109,890.45 = 48,312.30 : x
  2. Step 2: Convert to fraction form
    73,260.30/109,890.45 = 48,312.30/x
  3. Step 3: Cross multiply
    73,260.30x = 109,890.45 × 48,312.30
  4. Step 4: Simplify right side
    73,260.30x = 5,309,060,387.54
  5. Step 5: Solve for x
    x = 5,309,060,387.54/73,260.30
  6. Step 6: Final answer
    x = 72,468.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.