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Finding the Fourth Proportional to 69,365.60, 104,048.40 and 61,978.40

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Solution

The fourth proportional to 69,365.60, 104,048.40 and 61,978.40 is: 92,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,365.60 : 104,048.40 = 61,978.40 : x
  2. Step 2: Convert to fraction form
    69,365.60/104,048.40 = 61,978.40/x
  3. Step 3: Cross multiply
    69,365.60x = 104,048.40 × 61,978.40
  4. Step 4: Simplify right side
    69,365.60x = 6,448,753,354.56
  5. Step 5: Solve for x
    x = 6,448,753,354.56/69,365.60
  6. Step 6: Final answer
    x = 92,967.60

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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.