Home / 85,175.15-117,492.93-53,288.69

Finding the Fourth Proportional to 85,175.15, 117,492.93 and 53,288.69

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Solution

The fourth proportional to 85,175.15, 117,492.93 and 53,288.69 is: 73,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,175.15 : 117,492.93 = 53,288.69 : x
  2. Step 2: Convert to fraction form
    85,175.15/117,492.93 = 53,288.69/x
  3. Step 3: Cross multiply
    85,175.15x = 117,492.93 × 53,288.69
  4. Step 4: Simplify right side
    85,175.15x = 6,261,043,736.50
  5. Step 5: Solve for x
    x = 6,261,043,736.50/85,175.15
  6. Step 6: Final answer
    x = 73,507.87

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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.