Home / 78,685.31-118,062.86-41,236.48

Finding the Fourth Proportional to 78,685.31, 118,062.86 and 41,236.48

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Solution

The fourth proportional to 78,685.31, 118,062.86 and 41,236.48 is: 61,873.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,685.31 : 118,062.86 = 41,236.48 : x
  2. Step 2: Convert to fraction form
    78,685.31/118,062.86 = 41,236.48/x
  3. Step 3: Cross multiply
    78,685.31x = 118,062.86 × 41,236.48
  4. Step 4: Simplify right side
    78,685.31x = 4,868,496,765.13
  5. Step 5: Solve for x
    x = 4,868,496,765.13/78,685.31
  6. Step 6: Final answer
    x = 61,873.01

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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.