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Finding the Fourth Proportional to 72,216.96, 108,325.13 and 19,626.29

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Solution

The fourth proportional to 72,216.96, 108,325.13 and 19,626.29 is: 29,439.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,216.96 : 108,325.13 = 19,626.29 : x
  2. Step 2: Convert to fraction form
    72,216.96/108,325.13 = 19,626.29/x
  3. Step 3: Cross multiply
    72,216.96x = 108,325.13 × 19,626.29
  4. Step 4: Simplify right side
    72,216.96x = 2,126,020,415.67
  5. Step 5: Solve for x
    x = 2,126,020,415.67/72,216.96
  6. Step 6: Final answer
    x = 29,439.35

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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.