Home / 86,106.18-118,821.96-48,378

Finding the Fourth Proportional to 86,106.18, 118,821.96 and 48,378

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Solution

The fourth proportional to 86,106.18, 118,821.96 and 48,378 is: 66,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,106.18 : 118,821.96 = 48,378 : x
  2. Step 2: Convert to fraction form
    86,106.18/118,821.96 = 48,378/x
  3. Step 3: Cross multiply
    86,106.18x = 118,821.96 × 48,378
  4. Step 4: Simplify right side
    86,106.18x = 5,748,368,780.88
  5. Step 5: Solve for x
    x = 5,748,368,780.88/86,106.18
  6. Step 6: Final answer
    x = 66,759.07

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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.