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Finding the Fourth Proportional to 79,627.59, 119,515.23 and 40,212.45

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Solution

The fourth proportional to 79,627.59, 119,515.23 and 40,212.45 is: 60,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,627.59 : 119,515.23 = 40,212.45 : x
  2. Step 2: Convert to fraction form
    79,627.59/119,515.23 = 40,212.45/x
  3. Step 3: Cross multiply
    79,627.59x = 119,515.23 × 40,212.45
  4. Step 4: Simplify right side
    79,627.59x = 4,806,000,210.61
  5. Step 5: Solve for x
    x = 4,806,000,210.61/79,627.59
  6. Step 6: Final answer
    x = 60,355.97

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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.