Home / 86,051.12-118,736.62-53,781.93

Finding the Fourth Proportional to 86,051.12, 118,736.62 and 53,781.93

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Solution

The fourth proportional to 86,051.12, 118,736.62 and 53,781.93 is: 74,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,051.12 : 118,736.62 = 53,781.93 : x
  2. Step 2: Convert to fraction form
    86,051.12/118,736.62 = 53,781.93/x
  3. Step 3: Cross multiply
    86,051.12x = 118,736.62 × 53,781.93
  4. Step 4: Simplify right side
    86,051.12x = 6,385,884,450.82
  5. Step 5: Solve for x
    x = 6,385,884,450.82/86,051.12
  6. Step 6: Final answer
    x = 74,210.36

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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.