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Finding the Fourth Proportional to 64,136.70, 96,206.70 and 30,394.80

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Solution

The fourth proportional to 64,136.70, 96,206.70 and 30,394.80 is: 45,592.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,136.70 : 96,206.70 = 30,394.80 : x
  2. Step 2: Convert to fraction form
    64,136.70/96,206.70 = 30,394.80/x
  3. Step 3: Cross multiply
    64,136.70x = 96,206.70 × 30,394.80
  4. Step 4: Simplify right side
    64,136.70x = 2,924,183,405.16
  5. Step 5: Solve for x
    x = 2,924,183,405.16/64,136.70
  6. Step 6: Final answer
    x = 45,592.98

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1.5x scale

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.