Home / 85,201.08-117,595.05-56,522.49

Finding the Fourth Proportional to 85,201.08, 117,595.05 and 56,522.49

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Solution

The fourth proportional to 85,201.08, 117,595.05 and 56,522.49 is: 78,012.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,201.08 : 117,595.05 = 56,522.49 : x
  2. Step 2: Convert to fraction form
    85,201.08/117,595.05 = 56,522.49/x
  3. Step 3: Cross multiply
    85,201.08x = 117,595.05 × 56,522.49
  4. Step 4: Simplify right side
    85,201.08x = 6,646,765,037.67
  5. Step 5: Solve for x
    x = 6,646,765,037.67/85,201.08
  6. Step 6: Final answer
    x = 78,012.69

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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.