Home / 98,378.79-147,576.30-31,829.61

Finding the Fourth Proportional to 98,378.79, 147,576.30 and 31,829.61

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Solution

The fourth proportional to 98,378.79, 147,576.30 and 31,829.61 is: 47,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,378.79 : 147,576.30 = 31,829.61 : x
  2. Step 2: Convert to fraction form
    98,378.79/147,576.30 = 31,829.61/x
  3. Step 3: Cross multiply
    98,378.79x = 147,576.30 × 31,829.61
  4. Step 4: Simplify right side
    98,378.79x = 4,697,296,074.24
  5. Step 5: Solve for x
    x = 4,697,296,074.24/98,378.79
  6. Step 6: Final answer
    x = 47,747.04

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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.