Home / 84,861.38-117,112.35-47,135.63

Finding the Fourth Proportional to 84,861.38, 117,112.35 and 47,135.63

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Solution

The fourth proportional to 84,861.38, 117,112.35 and 47,135.63 is: 65,049.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,861.38 : 117,112.35 = 47,135.63 : x
  2. Step 2: Convert to fraction form
    84,861.38/117,112.35 = 47,135.63/x
  3. Step 3: Cross multiply
    84,861.38x = 117,112.35 × 47,135.63
  4. Step 4: Simplify right side
    84,861.38x = 5,520,163,812.47
  5. Step 5: Solve for x
    x = 5,520,163,812.47/84,861.38
  6. Step 6: Final answer
    x = 65,049.19

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1.5x scale

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.