Home / 78,815.84-118,121.08-32,014

Finding the Fourth Proportional to 78,815.84, 118,121.08 and 32,014

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Solution

The fourth proportional to 78,815.84, 118,121.08 and 32,014 is: 47,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,815.84 : 118,121.08 = 32,014 : x
  2. Step 2: Convert to fraction form
    78,815.84/118,121.08 = 32,014/x
  3. Step 3: Cross multiply
    78,815.84x = 118,121.08 × 32,014
  4. Step 4: Simplify right side
    78,815.84x = 3,781,528,255.12
  5. Step 5: Solve for x
    x = 3,781,528,255.12/78,815.84
  6. Step 6: Final answer
    x = 47,979.29

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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.