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Finding the Fourth Proportional to 75,011.52, 112,561.04 and 28,268.04

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Solution

The fourth proportional to 75,011.52, 112,561.04 and 28,268.04 is: 42,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,011.52 : 112,561.04 = 28,268.04 : x
  2. Step 2: Convert to fraction form
    75,011.52/112,561.04 = 28,268.04/x
  3. Step 3: Cross multiply
    75,011.52x = 112,561.04 × 28,268.04
  4. Step 4: Simplify right side
    75,011.52x = 3,181,879,981.16
  5. Step 5: Solve for x
    x = 3,181,879,981.16/75,011.52
  6. Step 6: Final answer
    x = 42,418.55

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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.