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Finding the Fourth Proportional to 56,499.75, 84,749.60 and 21,439.41

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Solution

The fourth proportional to 56,499.75, 84,749.60 and 21,439.41 is: 32,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,499.75 : 84,749.60 = 21,439.41 : x
  2. Step 2: Convert to fraction form
    56,499.75/84,749.60 = 21,439.41/x
  3. Step 3: Cross multiply
    56,499.75x = 84,749.60 × 21,439.41
  4. Step 4: Simplify right side
    56,499.75x = 1,816,981,421.74
  5. Step 5: Solve for x
    x = 1,816,981,421.74/56,499.75
  6. Step 6: Final answer
    x = 32,159.11

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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.