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Finding the Fourth Proportional to 72,526.41, 100,060.79 and 47,390.49

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Solution

The fourth proportional to 72,526.41, 100,060.79 and 47,390.49 is: 65,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,526.41 : 100,060.79 = 47,390.49 : x
  2. Step 2: Convert to fraction form
    72,526.41/100,060.79 = 47,390.49/x
  3. Step 3: Cross multiply
    72,526.41x = 100,060.79 × 47,390.49
  4. Step 4: Simplify right side
    72,526.41x = 4,741,929,630.93
  5. Step 5: Solve for x
    x = 4,741,929,630.93/72,526.41
  6. Step 6: Final answer
    x = 65,382.11

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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.