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Finding the Fourth Proportional to 72,860.56, 100,490.58 and 47,375.17

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Solution

The fourth proportional to 72,860.56, 100,490.58 and 47,375.17 is: 65,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,860.56 : 100,490.58 = 47,375.17 : x
  2. Step 2: Convert to fraction form
    72,860.56/100,490.58 = 47,375.17/x
  3. Step 3: Cross multiply
    72,860.56x = 100,490.58 × 47,375.17
  4. Step 4: Simplify right side
    72,860.56x = 4,760,758,059.67
  5. Step 5: Solve for x
    x = 4,760,758,059.67/72,860.56
  6. Step 6: Final answer
    x = 65,340.68

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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.