Home / 98,520.45-147,766.83-31,961.18

Finding the Fourth Proportional to 98,520.45, 147,766.83 and 31,961.18

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Solution

The fourth proportional to 98,520.45, 147,766.83 and 31,961.18 is: 47,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,520.45 : 147,766.83 = 31,961.18 : x
  2. Step 2: Convert to fraction form
    98,520.45/147,766.83 = 31,961.18/x
  3. Step 3: Cross multiply
    98,520.45x = 147,766.83 × 31,961.18
  4. Step 4: Simplify right side
    98,520.45x = 4,722,802,681.00
  5. Step 5: Solve for x
    x = 4,722,802,681.00/98,520.45
  6. Step 6: Final answer
    x = 47,937.28

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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.