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Finding the Fourth Proportional to 75,186.86, 112,797.68 and 21,880.08

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Solution

The fourth proportional to 75,186.86, 112,797.68 and 21,880.08 is: 32,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,186.86 : 112,797.68 = 21,880.08 : x
  2. Step 2: Convert to fraction form
    75,186.86/112,797.68 = 21,880.08/x
  3. Step 3: Cross multiply
    75,186.86x = 112,797.68 × 21,880.08
  4. Step 4: Simplify right side
    75,186.86x = 2,468,022,152.81
  5. Step 5: Solve for x
    x = 2,468,022,152.81/75,186.86
  6. Step 6: Final answer
    x = 32,825.18

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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.