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Finding the Fourth Proportional to 72,830.57, 100,508.03 and 41,000.58

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Solution

The fourth proportional to 72,830.57, 100,508.03 and 41,000.58 is: 56,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,830.57 : 100,508.03 = 41,000.58 : x
  2. Step 2: Convert to fraction form
    72,830.57/100,508.03 = 41,000.58/x
  3. Step 3: Cross multiply
    72,830.57x = 100,508.03 × 41,000.58
  4. Step 4: Simplify right side
    72,830.57x = 4,120,887,319.65
  5. Step 5: Solve for x
    x = 4,120,887,319.65/72,830.57
  6. Step 6: Final answer
    x = 56,581.84

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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.