Home / 85,028.63-117,339.50-47,302.88

Finding the Fourth Proportional to 85,028.63, 117,339.50 and 47,302.88

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Solution

The fourth proportional to 85,028.63, 117,339.50 and 47,302.88 is: 65,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,028.63 : 117,339.50 = 47,302.88 : x
  2. Step 2: Convert to fraction form
    85,028.63/117,339.50 = 47,302.88/x
  3. Step 3: Cross multiply
    85,028.63x = 117,339.50 × 47,302.88
  4. Step 4: Simplify right side
    85,028.63x = 5,550,495,819.32
  5. Step 5: Solve for x
    x = 5,550,495,819.32/85,028.63
  6. Step 6: Final answer
    x = 65,277.97

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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.