Home / 86,145.30-118,872.09-48,418.74

Finding the Fourth Proportional to 86,145.30, 118,872.09 and 48,418.74

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Solution

The fourth proportional to 86,145.30, 118,872.09 and 48,418.74 is: 66,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,145.30 : 118,872.09 = 48,418.74 : x
  2. Step 2: Convert to fraction form
    86,145.30/118,872.09 = 48,418.74/x
  3. Step 3: Cross multiply
    86,145.30x = 118,872.09 × 48,418.74
  4. Step 4: Simplify right side
    86,145.30x = 5,755,636,818.97
  5. Step 5: Solve for x
    x = 5,755,636,818.97/86,145.30
  6. Step 6: Final answer
    x = 66,813.13

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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.