Home / 66,433.86-99,649.93-39,787.29

Finding the Fourth Proportional to 66,433.86, 99,649.93 and 39,787.29

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Solution

The fourth proportional to 66,433.86, 99,649.93 and 39,787.29 is: 59,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,433.86 : 99,649.93 = 39,787.29 : x
  2. Step 2: Convert to fraction form
    66,433.86/99,649.93 = 39,787.29/x
  3. Step 3: Cross multiply
    66,433.86x = 99,649.93 × 39,787.29
  4. Step 4: Simplify right side
    66,433.86x = 3,964,800,663.39
  5. Step 5: Solve for x
    x = 3,964,800,663.39/66,433.86
  6. Step 6: Final answer
    x = 59,680.42

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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.