Home / 78,709.18-118,098.66-41,260.31

Finding the Fourth Proportional to 78,709.18, 118,098.66 and 41,260.31

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Solution

The fourth proportional to 78,709.18, 118,098.66 and 41,260.31 is: 61,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709.18 : 118,098.66 = 41,260.31 : x
  2. Step 2: Convert to fraction form
    78,709.18/118,098.66 = 41,260.31/x
  3. Step 3: Cross multiply
    78,709.18x = 118,098.66 × 41,260.31
  4. Step 4: Simplify right side
    78,709.18x = 4,872,787,322.18
  5. Step 5: Solve for x
    x = 4,872,787,322.18/78,709.18
  6. Step 6: Final answer
    x = 61,908.75

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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.