Home / 98,410.30-147,638.87-31,850.43

Finding the Fourth Proportional to 98,410.30, 147,638.87 and 31,850.43

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Solution

The fourth proportional to 98,410.30, 147,638.87 and 31,850.43 is: 47,783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,410.30 : 147,638.87 = 31,850.43 : x
  2. Step 2: Convert to fraction form
    98,410.30/147,638.87 = 31,850.43/x
  3. Step 3: Cross multiply
    98,410.30x = 147,638.87 × 31,850.43
  4. Step 4: Simplify right side
    98,410.30x = 4,702,360,900.76
  5. Step 5: Solve for x
    x = 4,702,360,900.76/98,410.30
  6. Step 6: Final answer
    x = 47,783.22

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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.