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Finding the Fourth Proportional to 64,524.38, 89,005.03 and 40,609.53

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Solution

The fourth proportional to 64,524.38, 89,005.03 and 40,609.53 is: 56,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,524.38 : 89,005.03 = 40,609.53 : x
  2. Step 2: Convert to fraction form
    64,524.38/89,005.03 = 40,609.53/x
  3. Step 3: Cross multiply
    64,524.38x = 89,005.03 × 40,609.53
  4. Step 4: Simplify right side
    64,524.38x = 3,614,452,334.41
  5. Step 5: Solve for x
    x = 3,614,452,334.41/64,524.38
  6. Step 6: Final answer
    x = 56,016.85

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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.