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Finding the Fourth Proportional to 68,962.72, 95,136 and 58,998.20

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Solution

The fourth proportional to 68,962.72, 95,136 and 58,998.20 is: 81,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,962.72 : 95,136 = 58,998.20 : x
  2. Step 2: Convert to fraction form
    68,962.72/95,136 = 58,998.20/x
  3. Step 3: Cross multiply
    68,962.72x = 95,136 × 58,998.20
  4. Step 4: Simplify right side
    68,962.72x = 5,612,852,755.20
  5. Step 5: Solve for x
    x = 5,612,852,755.20/68,962.72
  6. Step 6: Final answer
    x = 81,389.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.