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Finding the Fourth Proportional to 56,446.38, 84,616.59 and 18,980.25

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Solution

The fourth proportional to 56,446.38, 84,616.59 and 18,980.25 is: 28,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,446.38 : 84,616.59 = 18,980.25 : x
  2. Step 2: Convert to fraction form
    56,446.38/84,616.59 = 18,980.25/x
  3. Step 3: Cross multiply
    56,446.38x = 84,616.59 × 18,980.25
  4. Step 4: Simplify right side
    56,446.38x = 1,606,044,032.35
  5. Step 5: Solve for x
    x = 1,606,044,032.35/56,446.38
  6. Step 6: Final answer
    x = 28,452.56

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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.