Home / 85,307.11-117,700.18-55,093.70

Finding the Fourth Proportional to 85,307.11, 117,700.18 and 55,093.70

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Solution

The fourth proportional to 85,307.11, 117,700.18 and 55,093.70 is: 76,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,307.11 : 117,700.18 = 55,093.70 : x
  2. Step 2: Convert to fraction form
    85,307.11/117,700.18 = 55,093.70/x
  3. Step 3: Cross multiply
    85,307.11x = 117,700.18 × 55,093.70
  4. Step 4: Simplify right side
    85,307.11x = 6,484,538,563.38
  5. Step 5: Solve for x
    x = 6,484,538,563.38/85,307.11
  6. Step 6: Final answer
    x = 76,014.05

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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.