Home / 72,189.17-108,211.04-30,092.54

Finding the Fourth Proportional to 72,189.17, 108,211.04 and 30,092.54

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Solution

The fourth proportional to 72,189.17, 108,211.04 and 30,092.54 is: 45,108.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,189.17 : 108,211.04 = 30,092.54 : x
  2. Step 2: Convert to fraction form
    72,189.17/108,211.04 = 30,092.54/x
  3. Step 3: Cross multiply
    72,189.17x = 108,211.04 × 30,092.54
  4. Step 4: Simplify right side
    72,189.17x = 3,256,345,395.40
  5. Step 5: Solve for x
    x = 3,256,345,395.40/72,189.17
  6. Step 6: Final answer
    x = 45,108.50

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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.