Home / 85,526.29-117,949.35-55,279.81

Finding the Fourth Proportional to 85,526.29, 117,949.35 and 55,279.81

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Solution

The fourth proportional to 85,526.29, 117,949.35 and 55,279.81 is: 76,236.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,526.29 : 117,949.35 = 55,279.81 : x
  2. Step 2: Convert to fraction form
    85,526.29/117,949.35 = 55,279.81/x
  3. Step 3: Cross multiply
    85,526.29x = 117,949.35 × 55,279.81
  4. Step 4: Simplify right side
    85,526.29x = 6,520,217,657.62
  5. Step 5: Solve for x
    x = 6,520,217,657.62/85,526.29
  6. Step 6: Final answer
    x = 76,236.41

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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.