Home / 72,614.42-100,207.32-40,782.62

Finding the Fourth Proportional to 72,614.42, 100,207.32 and 40,782.62

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Solution

The fourth proportional to 72,614.42, 100,207.32 and 40,782.62 is: 56,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,614.42 : 100,207.32 = 40,782.62 : x
  2. Step 2: Convert to fraction form
    72,614.42/100,207.32 = 40,782.62/x
  3. Step 3: Cross multiply
    72,614.42x = 100,207.32 × 40,782.62
  4. Step 4: Simplify right side
    72,614.42x = 4,086,717,052.78
  5. Step 5: Solve for x
    x = 4,086,717,052.78/72,614.42
  6. Step 6: Final answer
    x = 56,279.69

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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.