Home / 86,055.11-118,755.66-47,820.88

Finding the Fourth Proportional to 86,055.11, 118,755.66 and 47,820.88

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Solution

The fourth proportional to 86,055.11, 118,755.66 and 47,820.88 is: 65,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,055.11 : 118,755.66 = 47,820.88 : x
  2. Step 2: Convert to fraction form
    86,055.11/118,755.66 = 47,820.88/x
  3. Step 3: Cross multiply
    86,055.11x = 118,755.66 × 47,820.88
  4. Step 4: Simplify right side
    86,055.11x = 5,679,000,166.18
  5. Step 5: Solve for x
    x = 5,679,000,166.18/86,055.11
  6. Step 6: Final answer
    x = 65,992.60

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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.