Home / 78,855.60-118,302.32-26,265.56

Finding the Fourth Proportional to 78,855.60, 118,302.32 and 26,265.56

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Solution

The fourth proportional to 78,855.60, 118,302.32 and 26,265.56 is: 39,404.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,855.60 : 118,302.32 = 26,265.56 : x
  2. Step 2: Convert to fraction form
    78,855.60/118,302.32 = 26,265.56/x
  3. Step 3: Cross multiply
    78,855.60x = 118,302.32 × 26,265.56
  4. Step 4: Simplify right side
    78,855.60x = 3,107,276,684.10
  5. Step 5: Solve for x
    x = 3,107,276,684.10/78,855.60
  6. Step 6: Final answer
    x = 39,404.64

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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.