Home / 72,060.30-99,433.89-40,230.54

Finding the Fourth Proportional to 72,060.30, 99,433.89 and 40,230.54

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Solution

The fourth proportional to 72,060.30, 99,433.89 and 40,230.54 is: 55,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,060.30 : 99,433.89 = 40,230.54 : x
  2. Step 2: Convert to fraction form
    72,060.30/99,433.89 = 40,230.54/x
  3. Step 3: Cross multiply
    72,060.30x = 99,433.89 × 40,230.54
  4. Step 4: Simplify right side
    72,060.30x = 4,000,279,089.00
  5. Step 5: Solve for x
    x = 4,000,279,089.00/72,060.30
  6. Step 6: Final answer
    x = 55,512.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.