Home / 72,816.13-100,517.35-48,956.64

Finding the Fourth Proportional to 72,816.13, 100,517.35 and 48,956.64

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Solution

The fourth proportional to 72,816.13, 100,517.35 and 48,956.64 is: 67,581.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,816.13 : 100,517.35 = 48,956.64 : x
  2. Step 2: Convert to fraction form
    72,816.13/100,517.35 = 48,956.64/x
  3. Step 3: Cross multiply
    72,816.13x = 100,517.35 × 48,956.64
  4. Step 4: Simplify right side
    72,816.13x = 4,920,991,498.64
  5. Step 5: Solve for x
    x = 4,920,991,498.64/72,816.13
  6. Step 6: Final answer
    x = 67,581.07

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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.