Home / 78,789.60-118,184.14-23,385.60

Finding the Fourth Proportional to 78,789.60, 118,184.14 and 23,385.60

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Solution

The fourth proportional to 78,789.60, 118,184.14 and 23,385.60 is: 35,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,789.60 : 118,184.14 = 23,385.60 : x
  2. Step 2: Convert to fraction form
    78,789.60/118,184.14 = 23,385.60/x
  3. Step 3: Cross multiply
    78,789.60x = 118,184.14 × 23,385.60
  4. Step 4: Simplify right side
    78,789.60x = 2,763,807,024.38
  5. Step 5: Solve for x
    x = 2,763,807,024.38/78,789.60
  6. Step 6: Final answer
    x = 35,078.32

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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.