Home / 86,051.12-118,751.28-48,328.88

Finding the Fourth Proportional to 86,051.12, 118,751.28 and 48,328.88

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Solution

The fourth proportional to 86,051.12, 118,751.28 and 48,328.88 is: 66,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,051.12 : 118,751.28 = 48,328.88 : x
  2. Step 2: Convert to fraction form
    86,051.12/118,751.28 = 48,328.88/x
  3. Step 3: Cross multiply
    86,051.12x = 118,751.28 × 48,328.88
  4. Step 4: Simplify right side
    86,051.12x = 5,739,116,360.97
  5. Step 5: Solve for x
    x = 5,739,116,360.97/86,051.12
  6. Step 6: Final answer
    x = 66,694.27

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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.