Home / 92,664.30-138,889.05-42,639.42

Finding the Fourth Proportional to 92,664.30, 138,889.05 and 42,639.42

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Solution

The fourth proportional to 92,664.30, 138,889.05 and 42,639.42 is: 63,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,664.30 : 138,889.05 = 42,639.42 : x
  2. Step 2: Convert to fraction form
    92,664.30/138,889.05 = 42,639.42/x
  3. Step 3: Cross multiply
    92,664.30x = 138,889.05 × 42,639.42
  4. Step 4: Simplify right side
    92,664.30x = 5,922,148,536.35
  5. Step 5: Solve for x
    x = 5,922,148,536.35/92,664.30
  6. Step 6: Final answer
    x = 63,909.71

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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.