Home / 49,438.12-74,156.56-11,998.50

Finding the Fourth Proportional to 49,438.12, 74,156.56 and 11,998.50

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Solution

The fourth proportional to 49,438.12, 74,156.56 and 11,998.50 is: 17,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,438.12 : 74,156.56 = 11,998.50 : x
  2. Step 2: Convert to fraction form
    49,438.12/74,156.56 = 11,998.50/x
  3. Step 3: Cross multiply
    49,438.12x = 74,156.56 × 11,998.50
  4. Step 4: Simplify right side
    49,438.12x = 889,767,485.16
  5. Step 5: Solve for x
    x = 889,767,485.16/49,438.12
  6. Step 6: Final answer
    x = 17,997.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.