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Finding the Fourth Proportional to 66,588.72, 99,892.44 and 21,594.84

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Solution

The fourth proportional to 66,588.72, 99,892.44 and 21,594.84 is: 32,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,588.72 : 99,892.44 = 21,594.84 : x
  2. Step 2: Convert to fraction form
    66,588.72/99,892.44 = 21,594.84/x
  3. Step 3: Cross multiply
    66,588.72x = 99,892.44 × 21,594.84
  4. Step 4: Simplify right side
    66,588.72x = 2,157,161,259.01
  5. Step 5: Solve for x
    x = 2,157,161,259.01/66,588.72
  6. Step 6: Final answer
    x = 32,395.30

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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.