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Finding the Fourth Proportional to 78,807.36, 118,230.72 and 23,403.36

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Solution

The fourth proportional to 78,807.36, 118,230.72 and 23,403.36 is: 35,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,807.36 : 118,230.72 = 23,403.36 : x
  2. Step 2: Convert to fraction form
    78,807.36/118,230.72 = 23,403.36/x
  3. Step 3: Cross multiply
    78,807.36x = 118,230.72 × 23,403.36
  4. Step 4: Simplify right side
    78,807.36x = 2,766,996,103.22
  5. Step 5: Solve for x
    x = 2,766,996,103.22/78,807.36
  6. Step 6: Final answer
    x = 35,110.88

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1.5x scale

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.