Home / 98,687.36-148,049.32-31,236.40

Finding the Fourth Proportional to 98,687.36, 148,049.32 and 31,236.40

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Solution

The fourth proportional to 98,687.36, 148,049.32 and 31,236.40 is: 46,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,687.36 : 148,049.32 = 31,236.40 : x
  2. Step 2: Convert to fraction form
    98,687.36/148,049.32 = 31,236.40/x
  3. Step 3: Cross multiply
    98,687.36x = 148,049.32 × 31,236.40
  4. Step 4: Simplify right side
    98,687.36x = 4,624,527,779.25
  5. Step 5: Solve for x
    x = 4,624,527,779.25/98,687.36
  6. Step 6: Final answer
    x = 46,860.39

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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.