Home / 52,835.30-72,912.24-28,961.90

Finding the Fourth Proportional to 52,835.30, 72,912.24 and 28,961.90

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Solution

The fourth proportional to 52,835.30, 72,912.24 and 28,961.90 is: 39,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,835.30 : 72,912.24 = 28,961.90 : x
  2. Step 2: Convert to fraction form
    52,835.30/72,912.24 = 28,961.90/x
  3. Step 3: Cross multiply
    52,835.30x = 72,912.24 × 28,961.90
  4. Step 4: Simplify right side
    52,835.30x = 2,111,676,639.09
  5. Step 5: Solve for x
    x = 2,111,676,639.09/52,835.30
  6. Step 6: Final answer
    x = 39,967.16

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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.