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Finding the Fourth Proportional to 56,233.60, 77,621.90 and 36,145.60

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Solution

The fourth proportional to 56,233.60, 77,621.90 and 36,145.60 is: 49,893.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,233.60 : 77,621.90 = 36,145.60 : x
  2. Step 2: Convert to fraction form
    56,233.60/77,621.90 = 36,145.60/x
  3. Step 3: Cross multiply
    56,233.60x = 77,621.90 × 36,145.60
  4. Step 4: Simplify right side
    56,233.60x = 2,805,690,148.64
  5. Step 5: Solve for x
    x = 2,805,690,148.64/56,233.60
  6. Step 6: Final answer
    x = 49,893.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.