Home / 47,751.20-65,885.16-28,636.88

Finding the Fourth Proportional to 47,751.20, 65,885.16 and 28,636.88

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Solution

The fourth proportional to 47,751.20, 65,885.16 and 28,636.88 is: 39,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,751.20 : 65,885.16 = 28,636.88 : x
  2. Step 2: Convert to fraction form
    47,751.20/65,885.16 = 28,636.88/x
  3. Step 3: Cross multiply
    47,751.20x = 65,885.16 × 28,636.88
  4. Step 4: Simplify right side
    47,751.20x = 1,886,745,420.70
  5. Step 5: Solve for x
    x = 1,886,745,420.70/47,751.20
  6. Step 6: Final answer
    x = 39,512.00

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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.