Home / 53,429.76-80,290.04-28,487.43

Finding the Fourth Proportional to 53,429.76, 80,290.04 and 28,487.43

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Solution

The fourth proportional to 53,429.76, 80,290.04 and 28,487.43 is: 42,808.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,429.76 : 80,290.04 = 28,487.43 : x
  2. Step 2: Convert to fraction form
    53,429.76/80,290.04 = 28,487.43/x
  3. Step 3: Cross multiply
    53,429.76x = 80,290.04 × 28,487.43
  4. Step 4: Simplify right side
    53,429.76x = 2,287,256,751.76
  5. Step 5: Solve for x
    x = 2,287,256,751.76/53,429.76
  6. Step 6: Final answer
    x = 42,808.67

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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.