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Finding the Fourth Proportional to 69,998.28, 96,600.18 and 39,788.67

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Solution

The fourth proportional to 69,998.28, 96,600.18 and 39,788.67 is: 54,909.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,998.28 : 96,600.18 = 39,788.67 : x
  2. Step 2: Convert to fraction form
    69,998.28/96,600.18 = 39,788.67/x
  3. Step 3: Cross multiply
    69,998.28x = 96,600.18 × 39,788.67
  4. Step 4: Simplify right side
    69,998.28x = 3,843,592,683.96
  5. Step 5: Solve for x
    x = 3,843,592,683.96/69,998.28
  6. Step 6: Final answer
    x = 54,909.82

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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.