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Finding the Fourth Proportional to 72,695.47, 100,288.90 and 44,384.75

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Solution

The fourth proportional to 72,695.47, 100,288.90 and 44,384.75 is: 61,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,695.47 : 100,288.90 = 44,384.75 : x
  2. Step 2: Convert to fraction form
    72,695.47/100,288.90 = 44,384.75/x
  3. Step 3: Cross multiply
    72,695.47x = 100,288.90 × 44,384.75
  4. Step 4: Simplify right side
    72,695.47x = 4,451,297,754.28
  5. Step 5: Solve for x
    x = 4,451,297,754.28/72,695.47
  6. Step 6: Final answer
    x = 61,232.12

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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.