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Finding the Fourth Proportional to 72,813.91, 109,220.75 and 22,898.38

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Solution

The fourth proportional to 72,813.91, 109,220.75 and 22,898.38 is: 34,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,813.91 : 109,220.75 = 22,898.38 : x
  2. Step 2: Convert to fraction form
    72,813.91/109,220.75 = 22,898.38/x
  3. Step 3: Cross multiply
    72,813.91x = 109,220.75 × 22,898.38
  4. Step 4: Simplify right side
    72,813.91x = 2,500,977,691.28
  5. Step 5: Solve for x
    x = 2,500,977,691.28/72,813.91
  6. Step 6: Final answer
    x = 34,347.53

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1.5x scale

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.