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Finding the Fourth Proportional to 101,610.50, 140,220.60 and 56,287.48

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Solution

The fourth proportional to 101,610.50, 140,220.60 and 56,287.48 is: 77,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,610.50 : 140,220.60 = 56,287.48 : x
  2. Step 2: Convert to fraction form
    101,610.50/140,220.60 = 56,287.48/x
  3. Step 3: Cross multiply
    101,610.50x = 140,220.60 × 56,287.48
  4. Step 4: Simplify right side
    101,610.50x = 7,892,664,218.09
  5. Step 5: Solve for x
    x = 7,892,664,218.09/101,610.50
  6. Step 6: Final answer
    x = 77,675.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.