Home / 53,309.21-79,790.20-39,263.70

Finding the Fourth Proportional to 53,309.21, 79,790.20 and 39,263.70

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Solution

The fourth proportional to 53,309.21, 79,790.20 and 39,263.70 is: 58,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,309.21 : 79,790.20 = 39,263.70 : x
  2. Step 2: Convert to fraction form
    53,309.21/79,790.20 = 39,263.70/x
  3. Step 3: Cross multiply
    53,309.21x = 79,790.20 × 39,263.70
  4. Step 4: Simplify right side
    53,309.21x = 3,132,858,475.74
  5. Step 5: Solve for x
    x = 3,132,858,475.74/53,309.21
  6. Step 6: Final answer
    x = 58,767.68

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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.