Home / 105,749.76-145,929.60-57,994.24

Finding the Fourth Proportional to 105,749.76, 145,929.60 and 57,994.24

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Solution

The fourth proportional to 105,749.76, 145,929.60 and 57,994.24 is: 80,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,749.76 : 145,929.60 = 57,994.24 : x
  2. Step 2: Convert to fraction form
    105,749.76/145,929.60 = 57,994.24/x
  3. Step 3: Cross multiply
    105,749.76x = 145,929.60 × 57,994.24
  4. Step 4: Simplify right side
    105,749.76x = 8,463,076,245.50
  5. Step 5: Solve for x
    x = 8,463,076,245.50/105,749.76
  6. Step 6: Final answer
    x = 80,029.27

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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.