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Finding the Fourth Proportional to 72,008.60, 108,008.94 and 22,088.76

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Solution

The fourth proportional to 72,008.60, 108,008.94 and 22,088.76 is: 33,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,008.60 : 108,008.94 = 22,088.76 : x
  2. Step 2: Convert to fraction form
    72,008.60/108,008.94 = 22,088.76/x
  3. Step 3: Cross multiply
    72,008.60x = 108,008.94 × 22,088.76
  4. Step 4: Simplify right side
    72,008.60x = 2,385,783,553.51
  5. Step 5: Solve for x
    x = 2,385,783,553.51/72,008.60
  6. Step 6: Final answer
    x = 33,131.93

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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.