Home / 85,912.08-118,530.72-48,179.04

Finding the Fourth Proportional to 85,912.08, 118,530.72 and 48,179.04

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Solution

The fourth proportional to 85,912.08, 118,530.72 and 48,179.04 is: 66,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,912.08 : 118,530.72 = 48,179.04 : x
  2. Step 2: Convert to fraction form
    85,912.08/118,530.72 = 48,179.04/x
  3. Step 3: Cross multiply
    85,912.08x = 118,530.72 × 48,179.04
  4. Step 4: Simplify right side
    85,912.08x = 5,710,696,300.11
  5. Step 5: Solve for x
    x = 5,710,696,300.11/85,912.08
  6. Step 6: Final answer
    x = 66,471.40

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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.