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Finding the Fourth Proportional to 72,989.68, 109,484.52 and 26,217.04

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Solution

The fourth proportional to 72,989.68, 109,484.52 and 26,217.04 is: 39,325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,989.68 : 109,484.52 = 26,217.04 : x
  2. Step 2: Convert to fraction form
    72,989.68/109,484.52 = 26,217.04/x
  3. Step 3: Cross multiply
    72,989.68x = 109,484.52 × 26,217.04
  4. Step 4: Simplify right side
    72,989.68x = 2,870,360,040.22
  5. Step 5: Solve for x
    x = 2,870,360,040.22/72,989.68
  6. Step 6: Final answer
    x = 39,325.56

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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.