Home / 85,428.19-117,870.95-49,596.62

Finding the Fourth Proportional to 85,428.19, 117,870.95 and 49,596.62

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Solution

The fourth proportional to 85,428.19, 117,870.95 and 49,596.62 is: 68,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,428.19 : 117,870.95 = 49,596.62 : x
  2. Step 2: Convert to fraction form
    85,428.19/117,870.95 = 49,596.62/x
  3. Step 3: Cross multiply
    85,428.19x = 117,870.95 × 49,596.62
  4. Step 4: Simplify right side
    85,428.19x = 5,846,000,468.21
  5. Step 5: Solve for x
    x = 5,846,000,468.21/85,428.19
  6. Step 6: Final answer
    x = 68,431.75

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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.