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Finding the Fourth Proportional to 72,276.60, 108,433.80 and 27,904.80

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Solution

The fourth proportional to 72,276.60, 108,433.80 and 27,904.80 is: 41,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,276.60 : 108,433.80 = 27,904.80 : x
  2. Step 2: Convert to fraction form
    72,276.60/108,433.80 = 27,904.80/x
  3. Step 3: Cross multiply
    72,276.60x = 108,433.80 × 27,904.80
  4. Step 4: Simplify right side
    72,276.60x = 3,025,823,502.24
  5. Step 5: Solve for x
    x = 3,025,823,502.24/72,276.60
  6. Step 6: Final answer
    x = 41,864.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.