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Finding the Fourth Proportional to 56,441.87, 84,609.83 and 18,975.74

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Solution

The fourth proportional to 56,441.87, 84,609.83 and 18,975.74 is: 28,445.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,441.87 : 84,609.83 = 18,975.74 : x
  2. Step 2: Convert to fraction form
    56,441.87/84,609.83 = 18,975.74/x
  3. Step 3: Cross multiply
    56,441.87x = 84,609.83 × 18,975.74
  4. Step 4: Simplify right side
    56,441.87x = 1,605,534,394.49
  5. Step 5: Solve for x
    x = 1,605,534,394.49/56,441.87
  6. Step 6: Final answer
    x = 28,445.81

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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.