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Finding the Fourth Proportional to 56,452.80, 84,679.35 and 19,039.15

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Solution

The fourth proportional to 56,452.80, 84,679.35 and 19,039.15 is: 28,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,452.80 : 84,679.35 = 19,039.15 : x
  2. Step 2: Convert to fraction form
    56,452.80/84,679.35 = 19,039.15/x
  3. Step 3: Cross multiply
    56,452.80x = 84,679.35 × 19,039.15
  4. Step 4: Simplify right side
    56,452.80x = 1,612,222,963.06
  5. Step 5: Solve for x
    x = 1,612,222,963.06/56,452.80
  6. Step 6: Final answer
    x = 28,558.78

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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.