Home / 78,537.14-117,784.44-53,572.53

Finding the Fourth Proportional to 78,537.14, 117,784.44 and 53,572.53

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Solution

The fourth proportional to 78,537.14, 117,784.44 and 53,572.53 is: 80,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,537.14 : 117,784.44 = 53,572.53 : x
  2. Step 2: Convert to fraction form
    78,537.14/117,784.44 = 53,572.53/x
  3. Step 3: Cross multiply
    78,537.14x = 117,784.44 × 53,572.53
  4. Step 4: Simplify right side
    78,537.14x = 6,310,010,445.43
  5. Step 5: Solve for x
    x = 6,310,010,445.43/78,537.14
  6. Step 6: Final answer
    x = 80,344.29

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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.