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Finding the Fourth Proportional to 98,480.72, 147,630.08 and 39,302

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Solution

The fourth proportional to 98,480.72, 147,630.08 and 39,302 is: 58,916.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,480.72 : 147,630.08 = 39,302 : x
  2. Step 2: Convert to fraction form
    98,480.72/147,630.08 = 39,302/x
  3. Step 3: Cross multiply
    98,480.72x = 147,630.08 × 39,302
  4. Step 4: Simplify right side
    98,480.72x = 5,802,157,404.16
  5. Step 5: Solve for x
    x = 5,802,157,404.16/98,480.72
  6. Step 6: Final answer
    x = 58,916.68

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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.