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Finding the Fourth Proportional to 79,642.59, 119,537.73 and 40,227.45

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Solution

The fourth proportional to 79,642.59, 119,537.73 and 40,227.45 is: 60,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,642.59 : 119,537.73 = 40,227.45 : x
  2. Step 2: Convert to fraction form
    79,642.59/119,537.73 = 40,227.45/x
  3. Step 3: Cross multiply
    79,642.59x = 119,537.73 × 40,227.45
  4. Step 4: Simplify right side
    79,642.59x = 4,808,698,056.69
  5. Step 5: Solve for x
    x = 4,808,698,056.69/79,642.59
  6. Step 6: Final answer
    x = 60,378.47

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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.