Home / 73,591.08-110,387.63-21,000.55

Finding the Fourth Proportional to 73,591.08, 110,387.63 and 21,000.55

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Solution

The fourth proportional to 73,591.08, 110,387.63 and 21,000.55 is: 31,501.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,591.08 : 110,387.63 = 21,000.55 : x
  2. Step 2: Convert to fraction form
    73,591.08/110,387.63 = 21,000.55/x
  3. Step 3: Cross multiply
    73,591.08x = 110,387.63 × 21,000.55
  4. Step 4: Simplify right side
    73,591.08x = 2,318,200,943.20
  5. Step 5: Solve for x
    x = 2,318,200,943.20/73,591.08
  6. Step 6: Final answer
    x = 31,501.11

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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.