Home / 78,685.36-118,062.93-41,236.53

Finding the Fourth Proportional to 78,685.36, 118,062.93 and 41,236.53

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Solution

The fourth proportional to 78,685.36, 118,062.93 and 41,236.53 is: 61,873.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,685.36 : 118,062.93 = 41,236.53 : x
  2. Step 2: Convert to fraction form
    78,685.36/118,062.93 = 41,236.53/x
  3. Step 3: Cross multiply
    78,685.36x = 118,062.93 × 41,236.53
  4. Step 4: Simplify right side
    78,685.36x = 4,868,505,554.83
  5. Step 5: Solve for x
    x = 4,868,505,554.83/78,685.36
  6. Step 6: Final answer
    x = 61,873.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.