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Finding the Fourth Proportional to 74,910.40, 112,365.60 and 67,537.60

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Solution

The fourth proportional to 74,910.40, 112,365.60 and 67,537.60 is: 101,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.40 : 112,365.60 = 67,537.60 : x
  2. Step 2: Convert to fraction form
    74,910.40/112,365.60 = 67,537.60/x
  3. Step 3: Cross multiply
    74,910.40x = 112,365.60 × 67,537.60
  4. Step 4: Simplify right side
    74,910.40x = 7,588,902,946.56
  5. Step 5: Solve for x
    x = 7,588,902,946.56/74,910.40
  6. Step 6: Final answer
    x = 101,306.40

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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.