Home / 43,129.20-64,674.60-19,762.80

Finding the Fourth Proportional to 43,129.20, 64,674.60 and 19,762.80

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Solution

The fourth proportional to 43,129.20, 64,674.60 and 19,762.80 is: 29,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.20 : 64,674.60 = 19,762.80 : x
  2. Step 2: Convert to fraction form
    43,129.20/64,674.60 = 19,762.80/x
  3. Step 3: Cross multiply
    43,129.20x = 64,674.60 × 19,762.80
  4. Step 4: Simplify right side
    43,129.20x = 1,278,151,184.88
  5. Step 5: Solve for x
    x = 1,278,151,184.88/43,129.20
  6. Step 6: Final answer
    x = 29,635.40

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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.