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Finding the Fourth Proportional to 85,475.61, 117,960.42 and 51,494.64

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Solution

The fourth proportional to 85,475.61, 117,960.42 and 51,494.64 is: 71,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,475.61 : 117,960.42 = 51,494.64 : x
  2. Step 2: Convert to fraction form
    85,475.61/117,960.42 = 51,494.64/x
  3. Step 3: Cross multiply
    85,475.61x = 117,960.42 × 51,494.64
  4. Step 4: Simplify right side
    85,475.61x = 6,074,329,362.15
  5. Step 5: Solve for x
    x = 6,074,329,362.15/85,475.61
  6. Step 6: Final answer
    x = 71,065.06

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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.