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Finding the Fourth Proportional to 72,838.62, 100,526.87 and 41,013.72

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Solution

The fourth proportional to 72,838.62, 100,526.87 and 41,013.72 is: 56,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,838.62 : 100,526.87 = 41,013.72 : x
  2. Step 2: Convert to fraction form
    72,838.62/100,526.87 = 41,013.72/x
  3. Step 3: Cross multiply
    72,838.62x = 100,526.87 × 41,013.72
  4. Step 4: Simplify right side
    72,838.62x = 4,122,980,898.66
  5. Step 5: Solve for x
    x = 4,122,980,898.66/72,838.62
  6. Step 6: Final answer
    x = 56,604.32

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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.