Home / 70,135.20-105,110.64-33,209.76

Finding the Fourth Proportional to 70,135.20, 105,110.64 and 33,209.76

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Solution

The fourth proportional to 70,135.20, 105,110.64 and 33,209.76 is: 49,771.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,135.20 : 105,110.64 = 33,209.76 : x
  2. Step 2: Convert to fraction form
    70,135.20/105,110.64 = 33,209.76/x
  3. Step 3: Cross multiply
    70,135.20x = 105,110.64 × 33,209.76
  4. Step 4: Simplify right side
    70,135.20x = 3,490,699,127.85
  5. Step 5: Solve for x
    x = 3,490,699,127.85/70,135.20
  6. Step 6: Final answer
    x = 49,771.00

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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.